251413150369 has 2 divisors, whose sum is σ = 251413150370. Its totient is φ = 251413150368.

The previous prime is 251413150327. The next prime is 251413150379. The reversal of 251413150369 is 963051314152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205644110400 + 45769039969 = 453480^2 + 213937^2 .

It is a cyclic number.

It is not a de Polignac number, because 251413150369 - 2⁹ = 251413149857 is a prime.

It is a super-2 number, since 2×251413150369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (251413150379) 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, 125706575184 + 125706575185.

It is an arithmetic number, because the mean of its divisors is an integer number (125706575185).

Almost surely, 2^251413150369 is an apocalyptic number.

It is an amenable number.

251413150369 is a deficient number, since it is larger than the sum of its proper divisors (1).

251413150369 is an equidigital number, since it uses as much as digits as its factorization.

251413150369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 251413150369 in words is "two hundred fifty-one billion, four hundred thirteen million, one hundred fifty thousand, three hundred sixty-nine".