401259431 has 2 divisors, whose sum is σ = 401259432. Its totient is φ = 401259430.

The previous prime is 401259409. The next prime is 401259451. The reversal of 401259431 is 134952104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401259431 - 2⁶ = 401259367 is a prime.

It is a super-2 number, since 2×401259431² = 322018261932887522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 401259394 and 401259403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401259451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200629715 + 200629716.

It is an arithmetic number, because the mean of its divisors is an integer number (200629716).

Almost surely, 2^401259431 is an apocalyptic number.

401259431 is a deficient number, since it is larger than the sum of its proper divisors (1).

401259431 is an equidigital number, since it uses as much as digits as its factorization.

401259431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 401259431 is about 20031.4610300896. The cubic root of 401259431 is about 737.5787867950.

The spelling of 401259431 in words is "four hundred one million, two hundred fifty-nine thousand, four hundred thirty-one".