401265043 has 2 divisors, whose sum is σ = 401265044. Its totient is φ = 401265042.

The previous prime is 401265017. The next prime is 401265071. The reversal of 401265043 is 340562104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401265043 - 2²⁵ = 367710611 is a prime.

It is a super-2 number, since 2×401265043² = 322027269467583698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401264999 and 401265017.

It is not a weakly prime, because it can be changed into another prime (401263043) 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, 200632521 + 200632522.

It is an arithmetic number, because the mean of its divisors is an integer number (200632522).

Almost surely, 2^401265043 is an apocalyptic number.

401265043 is a deficient number, since it is larger than the sum of its proper divisors (1).

401265043 is an equidigital number, since it uses as much as digits as its factorization.

401265043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 401265043 is about 20031.6011092474. The cubic root of 401265043 is about 737.5822253625.

The spelling of 401265043 in words is "four hundred one million, two hundred sixty-five thousand, forty-three".