1040117731 has 4 divisors (see below), whose sum is σ = 1040289712. Its totient is φ = 1039945752.

The previous prime is 1040117719. The next prime is 1040117791. The reversal of 1040117731 is 1377110401.

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 1040117731 - 2⁵ = 1040117699 is a prime.

It is a super-2 number, since 2×1040117731² = 2163689788681176722, 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 = 1040117696 and 1040117705.

It is not an unprimeable number, because it can be changed into a prime (1040117791) 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, 76575 + ... + 89128.

It is an arithmetic number, because the mean of its divisors is an integer number (260072428).

Almost surely, 2^1040117731 is an apocalyptic number.

1040117731 is a deficient number, since it is larger than the sum of its proper divisors (171981).

1040117731 is an equidigital number, since it uses as much as digits as its factorization.

1040117731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171980.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 1040117731 is about 32250.8562832059. The cubic root of 1040117731 is about 1013.1976332333.

The spelling of 1040117731 in words is "one billion, forty million, one hundred seventeen thousand, seven hundred thirty-one".