15633161 has 2 divisors, whose sum is σ = 15633162. Its totient is φ = 15633160.

The previous prime is 15633157. The next prime is 15633173. The reversal of 15633161 is 16133651.

15633161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15523600 + 109561 = 3940^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 15633161 - 2² = 15633157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15633161.

It is not a weakly prime, because it can be changed into another prime (15633131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7816580 + 7816581.

It is an arithmetic number, because the mean of its divisors is an integer number (7816581).

Almost surely, 2^15633161 is an apocalyptic number.

It is an amenable number.

15633161 is a deficient number, since it is larger than the sum of its proper divisors (1).

15633161 is an equidigital number, since it uses as much as digits as its factorization.

15633161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 15633161 is about 3953.8792343722. The cubic root of 15633161 is about 250.0435177577.

The spelling of 15633161 in words is "fifteen million, six hundred thirty-three thousand, one hundred sixty-one".