139853240 has 32 divisors (see below), whose sum is σ = 316008000. Its totient is φ = 55703424.

The previous prime is 139853227. The next prime is 139853249. The reversal of 139853240 is 42358931.

139853240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 139853240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139853249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2246 + ... + 16874.

It is an arithmetic number, because the mean of its divisors is an integer number (9875250).

Almost surely, 2^139853240 is an apocalyptic number.

139853240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139853240 is an abundant number, since it is smaller than the sum of its proper divisors (176154760).

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

139853240 is a wasteful number, since it uses less digits than its factorization.

139853240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14879 (or 14875 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 139853240 is about 11825.9561981262. The cubic root of 139853240 is about 519.0679061680.

The spelling of 139853240 in words is "one hundred thirty-nine million, eight hundred fifty-three thousand, two hundred forty".