15397161 has 16 divisors (see below), whose sum is σ = 22329216. Its totient is φ = 9380736.

The previous prime is 15397159. The next prime is 15397177. The reversal of 15397161 is 16179351.

It is a happy number.

It is not a de Polignac number, because 15397161 - 2¹ = 15397159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15397141) 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 15 ways as a sum of consecutive naturals, for example, 2101 + ... + 5933.

It is an arithmetic number, because the mean of its divisors is an integer number (1395576).

Almost surely, 2^15397161 is an apocalyptic number.

It is an amenable number.

15397161 is a deficient number, since it is larger than the sum of its proper divisors (6932055).

15397161 is a wasteful number, since it uses less digits than its factorization.

15397161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952.

The product of its digits is 5670, while the sum is 33.

The square root of 15397161 is about 3923.9216353031. The cubic root of 15397161 is about 248.7789040763.

The spelling of 15397161 in words is "fifteen million, three hundred ninety-seven thousand, one hundred sixty-one".