15131954671 has 2 divisors, whose sum is σ = 15131954672. Its totient is φ = 15131954670.

The previous prime is 15131954557. The next prime is 15131954729. The reversal of 15131954671 is 17645913151.

It is a strong prime.

It is an emirp because it is prime and its reverse (17645913151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15131954671 - 2⁷ = 15131954543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15131954471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7565977335 + 7565977336.

It is an arithmetic number, because the mean of its divisors is an integer number (7565977336).

Almost surely, 2^15131954671 is an apocalyptic number.

15131954671 is a deficient number, since it is larger than the sum of its proper divisors (1).

15131954671 is an equidigital number, since it uses as much as digits as its factorization.

15131954671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 43.

The spelling of 15131954671 in words is "fifteen billion, one hundred thirty-one million, nine hundred fifty-four thousand, six hundred seventy-one".