1040402131 has 8 divisors (see below), whose sum is σ = 1049195664. Its totient is φ = 1031621760.

The previous prime is 1040402117. The next prime is 1040402147. The reversal of 1040402131 is 1312040401.

1040402131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1040402131 - 2⁷ = 1040402003 is a prime.

It is a super-2 number, since 2×1040402131² = 2164873188378682322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040406131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214671 + ... + 219463.

It is an arithmetic number, because the mean of its divisors is an integer number (131149458).

Almost surely, 2^1040402131 is an apocalyptic number.

1040402131 is a deficient number, since it is larger than the sum of its proper divisors (8793533).

1040402131 is a wasteful number, since it uses less digits than its factorization.

1040402131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6581.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1040402131 is about 32255.2651671010. The cubic root of 1040402131 is about 1013.2899712252.

Adding to 1040402131 its reverse (1312040401), we get a palindrome (2352442532).

The spelling of 1040402131 in words is "one billion, forty million, four hundred two thousand, one hundred thirty-one".