405013031 has 2 divisors, whose sum is σ = 405013032. Its totient is φ = 405013030.

The previous prime is 405012983. The next prime is 405013061. The reversal of 405013031 is 130310504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405013031 - 2⁶ = 405012967 is a prime.

It is a super-2 number, since 2×405013031² = 328071110559613922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405013061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202506515 + 202506516.

It is an arithmetic number, because the mean of its divisors is an integer number (202506516).

Almost surely, 2^405013031 is an apocalyptic number.

405013031 is a deficient number, since it is larger than the sum of its proper divisors (1).

405013031 is an equidigital number, since it uses as much as digits as its factorization.

405013031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 405013031 is about 20124.9355526918. The cubic root of 405013031 is about 739.8715573275.

Adding to 405013031 its reverse (130310504), we get a palindrome (535323535).

The spelling of 405013031 in words is "four hundred five million, thirteen thousand, thirty-one".