156011982 has 24 divisors (see below), whose sum is σ = 362967336. Its totient is φ = 44574768.

The previous prime is 156011971. The next prime is 156011993. The reversal of 156011982 is 289110651.

156011982 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (156011971) and next prime (156011993).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265033 + ... + 265620.

It is an arithmetic number, because the mean of its divisors is an integer number (15123639).

Almost surely, 2^156011982 is an apocalyptic number.

156011982 is an abundant number, since it is smaller than the sum of its proper divisors (206955354).

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

156011982 is a wasteful number, since it uses less digits than its factorization.

156011982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530672 (or 530665 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 156011982 is about 12490.4756514714. The cubic root of 156011982 is about 538.3350432605.

The spelling of 156011982 in words is "one hundred fifty-six million, eleven thousand, nine hundred eighty-two".