139942074 has 32 divisors (see below), whose sum is σ = 293134464. Its totient is φ = 44454080.

The previous prime is 139942073. The next prime is 139942109. The reversal of 139942074 is 470249931.

139942074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (139942073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38704 + ... + 42164.

It is an arithmetic number, because the mean of its divisors is an integer number (9160452).

Almost surely, 2^139942074 is an apocalyptic number.

139942074 is an abundant number, since it is smaller than the sum of its proper divisors (153192390).

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

139942074 is a wasteful number, since it uses less digits than its factorization.

139942074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 139942074 is about 11829.7114926781. The cubic root of 139942074 is about 519.1777859217.

The spelling of 139942074 in words is "one hundred thirty-nine million, nine hundred forty-two thousand, seventy-four".