139057342 has 8 divisors (see below), whose sum is σ = 209131776. Its totient is φ = 69346752.

The previous prime is 139057339. The next prime is 139057367. The reversal of 139057342 is 243750931.

139057342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 139057298 and 139057307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90003 + ... + 91534.

It is an arithmetic number, because the mean of its divisors is an integer number (26141472).

Almost surely, 2^139057342 is an apocalyptic number.

139057342 is a deficient number, since it is larger than the sum of its proper divisors (70074434).

139057342 is a wasteful number, since it uses less digits than its factorization.

139057342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181922.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 139057342 is about 11792.2577142802. The cubic root of 139057342 is about 518.0813689303.

The spelling of 139057342 in words is "one hundred thirty-nine million, fifty-seven thousand, three hundred forty-two".