15213136507 has 2 divisors, whose sum is σ = 15213136508. Its totient is φ = 15213136506.

The previous prime is 15213136459. The next prime is 15213136517. The reversal of 15213136507 is 70563131251.

15213136507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15213136507 is a prime.

It is a super-2 number, since 2×15213136507² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15213136517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606568253 + 7606568254.

It is an arithmetic number, because the mean of its divisors is an integer number (7606568254).

Almost surely, 2^15213136507 is an apocalyptic number.

15213136507 is a deficient number, since it is larger than the sum of its proper divisors (1).

15213136507 is an equidigital number, since it uses as much as digits as its factorization.

15213136507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

Adding to 15213136507 its reverse (70563131251), we get a palindrome (85776267758).

The spelling of 15213136507 in words is "fifteen billion, two hundred thirteen million, one hundred thirty-six thousand, five hundred seven".