406146460531 has 4 divisors (see below), whose sum is σ = 464167383472. Its totient is φ = 348125537592.

The previous prime is 406146460529. The next prime is 406146460571. The reversal of 406146460531 is 135064641604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 406146460531 - 2¹ = 406146460529 is a prime.

It is a super-2 number, since 2×406146460531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406146460501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29010461460 + ... + 29010461473.

It is an arithmetic number, because the mean of its divisors is an integer number (116041845868).

Almost surely, 2^406146460531 is an apocalyptic number.

406146460531 is a deficient number, since it is larger than the sum of its proper divisors (58020922941).

406146460531 is an equidigital number, since it uses as much as digits as its factorization.

406146460531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58020922940.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 406146460531 in words is "four hundred six billion, one hundred forty-six million, four hundred sixty thousand, five hundred thirty-one".