15012391601 has 2 divisors, whose sum is σ = 15012391602. Its totient is φ = 15012391600.

The previous prime is 15012391591. The next prime is 15012391717. The reversal of 15012391601 is 10619321051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14792640625 + 219750976 = 121625^2 + 14824^2 .

It is a cyclic number.

It is not a de Polignac number, because 15012391601 - 2²² = 15008197297 is a prime.

It is not a weakly prime, because it can be changed into another prime (15012391001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506195800 + 7506195801.

It is an arithmetic number, because the mean of its divisors is an integer number (7506195801).

Almost surely, 2^15012391601 is an apocalyptic number.

It is an amenable number.

15012391601 is a deficient number, since it is larger than the sum of its proper divisors (1).

15012391601 is an equidigital number, since it uses as much as digits as its factorization.

15012391601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The spelling of 15012391601 in words is "fifteen billion, twelve million, three hundred ninety-one thousand, six hundred one".