156492961 has 8 divisors (see below), whose sum is σ = 162037800. Its totient is φ = 150958080.

The previous prime is 156492937. The next prime is 156492971. The reversal of 156492961 is 169294651.

It can be written as a sum of positive squares in 4 ways, for example, as 34810000 + 121682961 = 5900^2 + 11031^2 .

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 156492961 - 2¹¹ = 156490913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156492971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45345 + ... + 48673.

It is an arithmetic number, because the mean of its divisors is an integer number (20254725).

Almost surely, 2^156492961 is an apocalyptic number.

It is an amenable number.

156492961 is a deficient number, since it is larger than the sum of its proper divisors (5544839).

156492961 is a wasteful number, since it uses less digits than its factorization.

156492961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979.

The product of its digits is 116640, while the sum is 43.

The square root of 156492961 is about 12509.7146650113. The cubic root of 156492961 is about 538.8876978580.

The spelling of 156492961 in words is "one hundred fifty-six million, four hundred ninety-two thousand, nine hundred sixty-one".