156980145 has 32 divisors (see below), whose sum is σ = 291767040. Its totient is φ = 70583040.

The previous prime is 156980123. The next prime is 156980171. The reversal of 156980145 is 541089651.

It is not a de Polignac number, because 156980145 - 2⁶ = 156980081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5850 + ... + 18659.

It is an arithmetic number, because the mean of its divisors is an integer number (9117720).

Almost surely, 2^156980145 is an apocalyptic number.

156980145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

156980145 is a deficient number, since it is larger than the sum of its proper divisors (134786895).

156980145 is a wasteful number, since it uses less digits than its factorization.

156980145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24585.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 156980145 is about 12529.1717603360. The cubic root of 156980145 is about 539.4463289393.

The spelling of 156980145 in words is "one hundred fifty-six million, nine hundred eighty thousand, one hundred forty-five".