139674042 has 12 divisors (see below), whose sum is σ = 302627130. Its totient is φ = 46558008.

The previous prime is 139674037. The next prime is 139674047. The reversal of 139674042 is 240476931.

It is an interprime number because it is at equal distance from previous prime (139674037) and next prime (139674047).

It can be written as a sum of positive squares in only one way, i.e., 118135161 + 21538881 = 10869^2 + 4641^2 .

It is a junction number, because it is equal to n+sod(n) for n = 139673988 and 139674006.

It is not an unprimeable number, because it can be changed into a prime (139674047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3879817 + ... + 3879852.

Almost surely, 2^139674042 is an apocalyptic number.

139674042 is an abundant number, since it is smaller than the sum of its proper divisors (162953088).

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

139674042 is a wasteful number, since it uses less digits than its factorization.

139674042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7759677 (or 7759674 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 139674042 is about 11818.3772997819. The cubic root of 139674042 is about 518.8461125055.

The spelling of 139674042 in words is "one hundred thirty-nine million, six hundred seventy-four thousand, forty-two".