1512239969 has 2 divisors, whose sum is σ = 1512239970. Its totient is φ = 1512239968.

The previous prime is 1512239929. The next prime is 1512240007. The reversal of 1512239969 is 9699322151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1510099600 + 2140369 = 38860^2 + 1463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1512239969 is a prime.

It is a super-2 number, since 2×1512239969² = 4573739447682241922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1512239929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756119984 + 756119985.

It is an arithmetic number, because the mean of its divisors is an integer number (756119985).

Almost surely, 2^1512239969 is an apocalyptic number.

It is an amenable number.

1512239969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1512239969 is an equidigital number, since it uses as much as digits as its factorization.

1512239969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 47.

The square root of 1512239969 is about 38887.5297364078. The cubic root of 1512239969 is about 1147.8194265815.

The spelling of 1512239969 in words is "one billion, five hundred twelve million, two hundred thirty-nine thousand, nine hundred sixty-nine".