401212907 has 2 divisors, whose sum is σ = 401212908. Its totient is φ = 401212906.

The previous prime is 401212901. The next prime is 401212957. The reversal of 401212907 is 709212104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401212907 - 2²⁴ = 384435691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401212901) 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, 200606453 + 200606454.

It is an arithmetic number, because the mean of its divisors is an integer number (200606454).

Almost surely, 2^401212907 is an apocalyptic number.

401212907 is a deficient number, since it is larger than the sum of its proper divisors (1).

401212907 is an equidigital number, since it uses as much as digits as its factorization.

401212907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 401212907 is about 20030.2997231694. The cubic root of 401212907 is about 737.5502795176.

The spelling of 401212907 in words is "four hundred one million, two hundred twelve thousand, nine hundred seven".