1040204131 has 8 divisors (see below), whose sum is σ = 1043497728. Its totient is φ = 1036917000.

The previous prime is 1040204111. The next prime is 1040204149. The reversal of 1040204131 is 1314020401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040204131 is a prime.

It is a super-2 number, since 2×1040204131² = 2164049268298930322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040204111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687666 + ... + 689176.

It is an arithmetic number, because the mean of its divisors is an integer number (130437216).

Almost surely, 2^1040204131 is an apocalyptic number.

1040204131 is a deficient number, since it is larger than the sum of its proper divisors (3293597).

1040204131 is a wasteful number, since it uses less digits than its factorization.

1040204131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233.

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

The square root of 1040204131 is about 32252.1957547079. The cubic root of 1040204131 is about 1013.2256870613.

Adding to 1040204131 its reverse (1314020401), we get a palindrome (2354224532).

The spelling of 1040204131 in words is "one billion, forty million, two hundred four thousand, one hundred thirty-one".