139870485 has 24 divisors (see below), whose sum is σ = 242816184. Its totient is φ = 74482560.

The previous prime is 139870483. The next prime is 139870487. The reversal of 139870485 is 584078931.

139870485 is a `hidden beast` number, since 13 + 98 + 70 + 485 = 666.

It is an interprime number because it is at equal distance from previous prime (139870483) and next prime (139870487).

It can be written as a sum of positive squares in 4 ways, for example, as 6260004 + 133610481 = 2502^2 + 11559^2 .

It is not a de Polignac number, because 139870485 - 2¹ = 139870483 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 139870485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139870483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32775 + ... + 36795.

It is an arithmetic number, because the mean of its divisors is an integer number (10117341).

Almost surely, 2^139870485 is an apocalyptic number.

139870485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139870485 is a deficient number, since it is larger than the sum of its proper divisors (102945699).

139870485 is a wasteful number, since it uses less digits than its factorization.

139870485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805 (or 4802 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 139870485 is about 11826.6852921687. The cubic root of 139870485 is about 519.0892403374.

The spelling of 139870485 in words is "one hundred thirty-nine million, eight hundred seventy thousand, four hundred eighty-five".