15131553401 has 2 divisors, whose sum is σ = 15131553402. Its totient is φ = 15131553400.

The previous prime is 15131553389. The next prime is 15131553407. The reversal of 15131553401 is 10435513151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8413292176 + 6718261225 = 91724^2 + 81965^2 .

It is a cyclic number.

It is not a de Polignac number, because 15131553401 - 2¹⁰ = 15131552377 is a prime.

It is not a weakly prime, because it can be changed into another prime (15131553407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7565776700 + 7565776701.

It is an arithmetic number, because the mean of its divisors is an integer number (7565776701).

Almost surely, 2^15131553401 is an apocalyptic number.

It is an amenable number.

15131553401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15131553401 is an equidigital number, since it uses as much as digits as its factorization.

15131553401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 15131553401 in words is "fifteen billion, one hundred thirty-one million, five hundred fifty-three thousand, four hundred one".