405142051 has 2 divisors, whose sum is σ = 405142052. Its totient is φ = 405142050.

The previous prime is 405142039. The next prime is 405142061. The reversal of 405142051 is 150241504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405142051 - 2⁷ = 405141923 is a prime.

It is not a weakly prime, because it can be changed into another prime (405142061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202571025 + 202571026.

It is an arithmetic number, because the mean of its divisors is an integer number (202571026).

Almost surely, 2^405142051 is an apocalyptic number.

405142051 is a deficient number, since it is larger than the sum of its proper divisors (1).

405142051 is an equidigital number, since it uses as much as digits as its factorization.

405142051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 405142051 is about 20128.1407735538. The cubic root of 405142051 is about 739.9501129019.

Adding to 405142051 its reverse (150241504), we get a palindrome (555383555).

The spelling of 405142051 in words is "four hundred five million, one hundred forty-two thousand, fifty-one".