401515351 has 2 divisors, whose sum is σ = 401515352. Its totient is φ = 401515350.

The previous prime is 401515327. The next prime is 401515417. The reversal of 401515351 is 153515104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401515351 - 2⁵ = 401515319 is a prime.

It is a super-2 number, since 2×401515351² = 322429154177306402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401515951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200757675 + 200757676.

It is an arithmetic number, because the mean of its divisors is an integer number (200757676).

Almost surely, 2^401515351 is an apocalyptic number.

401515351 is a deficient number, since it is larger than the sum of its proper divisors (1).

401515351 is an equidigital number, since it uses as much as digits as its factorization.

401515351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 401515351 is about 20037.8479632919. The cubic root of 401515351 is about 737.7355607195.

The spelling of 401515351 in words is "four hundred one million, five hundred fifteen thousand, three hundred fifty-one".