15040512049 has 2 divisors, whose sum is σ = 15040512050. Its totient is φ = 15040512048.

The previous prime is 15040511999. The next prime is 15040512059. The reversal of 15040512049 is 94021504051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8251905600 + 6788606449 = 90840^2 + 82393^2 .

It is a cyclic number.

It is not a de Polignac number, because 15040512049 - 2¹⁷ = 15040380977 is a prime.

It is a super-2 number, since 2×15040512049² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15040512049.

It is not a weakly prime, because it can be changed into another prime (15040512059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520256024 + 7520256025.

It is an arithmetic number, because the mean of its divisors is an integer number (7520256025).

Almost surely, 2^15040512049 is an apocalyptic number.

It is an amenable number.

15040512049 is a deficient number, since it is larger than the sum of its proper divisors (1).

15040512049 is an equidigital number, since it uses as much as digits as its factorization.

15040512049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 15040512049 in words is "fifteen billion, forty million, five hundred twelve thousand, forty-nine".