139870352 has 20 divisors (see below), whose sum is σ = 277609836. Its totient is φ = 68229120.

The previous prime is 139870351. The next prime is 139870399. The reversal of 139870352 is 253078931.

It can be written as a sum of positive squares in 2 ways, for example, as 1948816 + 137921536 = 1396^2 + 11744^2 .

It is not an unprimeable number, because it can be changed into a prime (139870351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105953 + ... + 107264.

Almost surely, 2^139870352 is an apocalyptic number.

It is an amenable number.

139870352 is a deficient number, since it is larger than the sum of its proper divisors (137739484).

139870352 is a wasteful number, since it uses less digits than its factorization.

139870352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213266 (or 213260 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 139870352 is about 11826.6796692901. The cubic root of 139870352 is about 519.0890758069.

The spelling of 139870352 in words is "one hundred thirty-nine million, eight hundred seventy thousand, three hundred fifty-two".