401136517 has 2 divisors, whose sum is σ = 401136518. Its totient is φ = 401136516.

The previous prime is 401136503. The next prime is 401136563. The reversal of 401136517 is 715631104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260144641 + 140991876 = 16129^2 + 11874^2 .

It is a cyclic number.

It is not a de Polignac number, because 401136517 - 2⁷ = 401136389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401136577) 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, 200568258 + 200568259.

It is an arithmetic number, because the mean of its divisors is an integer number (200568259).

Almost surely, 2^401136517 is an apocalyptic number.

It is an amenable number.

401136517 is a deficient number, since it is larger than the sum of its proper divisors (1).

401136517 is an equidigital number, since it uses as much as digits as its factorization.

401136517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 401136517 is about 20028.3927712635. The cubic root of 401136517 is about 737.5034672632.

The spelling of 401136517 in words is "four hundred one million, one hundred thirty-six thousand, five hundred seventeen".