156863142 has 20 divisors (see below), whose sum is σ = 351489996. Its totient is φ = 52287660.

The previous prime is 156863141. The next prime is 156863153. The reversal of 156863142 is 241368651.

It is a happy number.

156863142 is a `hidden beast` number, since 15 + 6 + 8 + 631 + 4 + 2 = 666.

It is a super-2 number, since 2×156863142² = 49212090636224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156863097 and 156863106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156863141) 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 9 ways as a sum of consecutive naturals, for example, 483984 + ... + 484307.

Almost surely, 2^156863142 is an apocalyptic number.

156863142 is an abundant number, since it is smaller than the sum of its proper divisors (194626854).

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

156863142 is an equidigital number, since it uses as much as digits as its factorization.

156863142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968305 (or 968296 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 156863142 is about 12524.5016667331. The cubic root of 156863142 is about 539.3122726516.

The spelling of 156863142 in words is "one hundred fifty-six million, eight hundred sixty-three thousand, one hundred forty-two".