157862939 has 4 divisors (see below), whose sum is σ = 170006256. Its totient is φ = 145719624.

The previous prime is 157862927. The next prime is 157862977. The reversal of 157862939 is 939268751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157862939 - 2¹² = 157858843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157862339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6071639 + ... + 6071664.

It is an arithmetic number, because the mean of its divisors is an integer number (42501564).

Almost surely, 2^157862939 is an apocalyptic number.

157862939 is a deficient number, since it is larger than the sum of its proper divisors (12143317).

157862939 is a wasteful number, since it uses less digits than its factorization.

157862939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12143316.

The product of its digits is 816480, while the sum is 50.

The square root of 157862939 is about 12564.3519132504. The cubic root of 157862939 is about 540.4556499384.

The spelling of 157862939 in words is "one hundred fifty-seven million, eight hundred sixty-two thousand, nine hundred thirty-nine".