15040161 has 10 divisors (see below), whose sum is σ = 22467522. Its totient is φ = 10026720.

The previous prime is 15040159. The next prime is 15040169. The reversal of 15040161 is 16104051.

15040161 is a `hidden beast` number, since 1 + 504 + 0 + 161 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13950225 + 1089936 = 3735^2 + 1044^2 .

It is not a de Polignac number, because 15040161 - 2¹ = 15040159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15040169) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 92760 + ... + 92921.

Almost surely, 2^15040161 is an apocalyptic number.

It is an amenable number.

15040161 is a deficient number, since it is larger than the sum of its proper divisors (7427361).

15040161 is an equidigital number, since it uses as much as digits as its factorization.

15040161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185693 (or 185684 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 15040161 is about 3878.1646432301. The cubic root of 15040161 is about 246.8411124986.

The spelling of 15040161 in words is "fifteen million, forty thousand, one hundred sixty-one".