156953982 has 16 divisors (see below), whose sum is σ = 316305792. Its totient is φ = 51918360.

The previous prime is 156953981. The next prime is 156953987. The reversal of 156953982 is 289359651.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156953981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99058 + ... + 100629.

It is an arithmetic number, because the mean of its divisors is an integer number (19769112).

Almost surely, 2^156953982 is an apocalyptic number.

156953982 is an abundant number, since it is smaller than the sum of its proper divisors (159351810).

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

156953982 is a wasteful number, since it uses less digits than its factorization.

156953982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199823.

The product of its digits is 583200, while the sum is 48.

The square root of 156953982 is about 12528.1276334495. The cubic root of 156953982 is about 539.4163584432.

The spelling of 156953982 in words is "one hundred fifty-six million, nine hundred fifty-three thousand, nine hundred eighty-two".