156797941 has 8 divisors (see below), whose sum is σ = 159969944. Its totient is φ = 153653760.

The previous prime is 156797911. The next prime is 156797951. The reversal of 156797941 is 149797651.

It can be written as a sum of positive squares in 4 ways, for example, as 47679025 + 109118916 = 6905^2 + 10446^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 156797941 - 2⁷ = 156797813 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 (156797911) 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, 4621 + ... + 18301.

It is an arithmetic number, because the mean of its divisors is an integer number (19996243).

Almost surely, 2^156797941 is an apocalyptic number.

It is an amenable number.

156797941 is a deficient number, since it is larger than the sum of its proper divisors (3172003).

156797941 is a wasteful number, since it uses less digits than its factorization.

156797941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911.

The product of its digits is 476280, while the sum is 49.

The square root of 156797941 is about 12521.8984583010. The cubic root of 156797941 is about 539.2375396239.

The spelling of 156797941 in words is "one hundred fifty-six million, seven hundred ninety-seven thousand, nine hundred forty-one".