15182582081 has 2 divisors, whose sum is σ = 15182582082. Its totient is φ = 15182582080.

The previous prime is 15182582069. The next prime is 15182582113. The reversal of 15182582081 is 18028528151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9104976400 + 6077605681 = 95420^2 + 77959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15182582081 is a prime.

It is a super-2 number, since 2×15182582081² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15182582381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7591291040 + 7591291041.

It is an arithmetic number, because the mean of its divisors is an integer number (7591291041).

Almost surely, 2^15182582081 is an apocalyptic number.

It is an amenable number.

15182582081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15182582081 is an equidigital number, since it uses as much as digits as its factorization.

15182582081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51200, while the sum is 41.

The spelling of 15182582081 in words is "fifteen billion, one hundred eighty-two million, five hundred eighty-two thousand, eighty-one".