156977103 has 8 divisors (see below), whose sum is σ = 209427328. Its totient is φ = 104589144.

The previous prime is 156977089. The next prime is 156977131. The reversal of 156977103 is 301779651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156977103 - 2⁵ = 156977071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156977173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9325 + ... + 20022.

It is an arithmetic number, because the mean of its divisors is an integer number (26178416).

Almost surely, 2^156977103 is an apocalyptic number.

156977103 is a deficient number, since it is larger than the sum of its proper divisors (52450225).

156977103 is a wasteful number, since it uses less digits than its factorization.

156977103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31133.

The product of its (nonzero) digits is 39690, while the sum is 39.

The square root of 156977103 is about 12529.0503630563. The cubic root of 156977103 is about 539.4428444087.

It can be divided in two parts, 156977 and 103, that added together give a triangular number (157080 = T₅₆₀).

The spelling of 156977103 in words is "one hundred fifty-six million, nine hundred seventy-seven thousand, one hundred three".