1042919131 has 4 divisors (see below), whose sum is σ = 1043091000. Its totient is φ = 1042747264.

The previous prime is 1042919123. The next prime is 1042919159. The reversal of 1042919131 is 1319192401.

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

It is a cyclic number.

It is not a de Polignac number, because 1042919131 - 2³ = 1042919123 is a prime.

It is a super-2 number, since 2×1042919131² = 2175360627611590322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042919093 and 1042919102.

It is not an unprimeable number, because it can be changed into a prime (1042919191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76486 + ... + 89083.

It is an arithmetic number, because the mean of its divisors is an integer number (260772750).

Almost surely, 2^1042919131 is an apocalyptic number.

1042919131 is a deficient number, since it is larger than the sum of its proper divisors (171869).

1042919131 is an equidigital number, since it uses as much as digits as its factorization.

1042919131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171868.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1042919131 is about 32294.2584835138. The cubic root of 1042919131 is about 1014.1064493957.

The spelling of 1042919131 in words is "one billion, forty-two million, nine hundred nineteen thousand, one hundred thirty-one".