401212957 has 2 divisors, whose sum is σ = 401212958. Its totient is φ = 401212956.

The previous prime is 401212907. The next prime is 401212961. The reversal of 401212957 is 759212104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255552196 + 145660761 = 15986^2 + 12069^2 .

It is a cyclic number.

It is not a de Polignac number, because 401212957 - 2¹⁵ = 401180189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401212907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200606478 + 200606479.

It is an arithmetic number, because the mean of its divisors is an integer number (200606479).

Almost surely, 2^401212957 is an apocalyptic number.

It is an amenable number.

401212957 is a deficient number, since it is larger than the sum of its proper divisors (1).

401212957 is an equidigital number, since it uses as much as digits as its factorization.

401212957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 401212957 is about 20030.3009712785. The cubic root of 401212957 is about 737.5503101560.

The spelling of 401212957 in words is "four hundred one million, two hundred twelve thousand, nine hundred fifty-seven".