157339138 has 8 divisors (see below), whose sum is σ = 257464080. Its totient is φ = 71517780.

The previous prime is 157339103. The next prime is 157339187. The reversal of 157339138 is 831933751.

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

It is a self number, because there is not a number n which added to its sum of digits gives 157339138.

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, 3575868 + ... + 3575911.

It is an arithmetic number, because the mean of its divisors is an integer number (32183010).

Almost surely, 2^157339138 is an apocalyptic number.

157339138 is a deficient number, since it is larger than the sum of its proper divisors (100124942).

157339138 is a wasteful number, since it uses less digits than its factorization.

157339138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151792.

The product of its digits is 68040, while the sum is 40.

The square root of 157339138 is about 12543.4898652648. The cubic root of 157339138 is about 539.8572302036.

The spelling of 157339138 in words is "one hundred fifty-seven million, three hundred thirty-nine thousand, one hundred thirty-eight".