405051043 has 2 divisors, whose sum is σ = 405051044. Its totient is φ = 405051042.

The previous prime is 405051019. The next prime is 405051077. The reversal of 405051043 is 340150504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405051043 - 2⁵ = 405051011 is a prime.

It is not a weakly prime, because it can be changed into another prime (405051743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202525521 + 202525522.

It is an arithmetic number, because the mean of its divisors is an integer number (202525522).

Almost surely, 2^405051043 is an apocalyptic number.

405051043 is a deficient number, since it is larger than the sum of its proper divisors (1).

405051043 is an equidigital number, since it uses as much as digits as its factorization.

405051043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 405051043 is about 20125.8799310738. The cubic root of 405051043 is about 739.8947031818.

The spelling of 405051043 in words is "four hundred five million, fifty-one thousand, forty-three".