156873868 has 6 divisors (see below), whose sum is σ = 274529276. Its totient is φ = 78436932.

The previous prime is 156873859. The next prime is 156873881. The reversal of 156873868 is 868378651.

It is a super-2 number, since 2×156873868² = 49218820922562848, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19609230 + ... + 19609237.

Almost surely, 2^156873868 is an apocalyptic number.

It is an amenable number.

156873868 is a deficient number, since it is larger than the sum of its proper divisors (117655408).

156873868 is a wasteful number, since it uses less digits than its factorization.

156873868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39218471 (or 39218469 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 156873868 is about 12524.9298600830. The cubic root of 156873868 is about 539.3245647502.

The spelling of 156873868 in words is "one hundred fifty-six million, eight hundred seventy-three thousand, eight hundred sixty-eight".