15005140961 has 2 divisors, whose sum is σ = 15005140962. Its totient is φ = 15005140960.

The previous prime is 15005140939. The next prime is 15005141023. The reversal of 15005140961 is 16904150051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11096515600 + 3908625361 = 105340^2 + 62519^2 .

It is a cyclic number.

It is not a de Polignac number, because 15005140961 - 2⁶ = 15005140897 is a prime.

It is not a weakly prime, because it can be changed into another prime (15005140901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7502570480 + 7502570481.

It is an arithmetic number, because the mean of its divisors is an integer number (7502570481).

Almost surely, 2^15005140961 is an apocalyptic number.

It is an amenable number.

15005140961 is a deficient number, since it is larger than the sum of its proper divisors (1).

15005140961 is an equidigital number, since it uses as much as digits as its factorization.

15005140961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 15005140961 in words is "fifteen billion, five million, one hundred forty thousand, nine hundred sixty-one".