139753845 has 96 divisors (see below), whose sum is σ = 308116224. Its totient is φ = 56908800.

The previous prime is 139753843. The next prime is 139753849. The reversal of 139753845 is 548357931.

139753845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139753845 - 2¹ = 139753843 is a prime.

It is a super-2 number, since 2×139753845² = 39062274384568050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (453600) is a multiple of the sum of its prime divisors (840).

It is a self number, because there is not a number n which added to its sum of digits gives 139753845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139753841) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 183265 + ... + 184025.

It is an arithmetic number, because the mean of its divisors is an integer number (3209544).

Almost surely, 2^139753845 is an apocalyptic number.

139753845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139753845 is an abundant number, since it is smaller than the sum of its proper divisors (168362379).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139753845 is a wasteful number, since it uses less digits than its factorization.

139753845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 840 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 139753845 is about 11821.7530425906. The cubic root of 139753845 is about 518.9449082266.

The spelling of 139753845 in words is "one hundred thirty-nine million, seven hundred fifty-three thousand, eight hundred forty-five".