1004521131 has 12 divisors (see below), whose sum is σ = 1455021360. Its totient is φ = 667813200.

The previous prime is 1004521129. The next prime is 1004521153. The reversal of 1004521131 is 1311254001.

1004521131 is a `hidden beast` number, since 10 + 0 + 4 + 521 + 131 = 666.

It is not a de Polignac number, because 1004521131 - 2¹ = 1004521129 is a prime.

It is a super-2 number, since 2×1004521131² = 2018125405251038322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1004522131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152220 + ... + 158681.

It is an arithmetic number, because the mean of its divisors is an integer number (121251780).

Almost surely, 2^1004521131 is an apocalyptic number.

1004521131 is a deficient number, since it is larger than the sum of its proper divisors (450500229).

1004521131 is a wasteful number, since it uses less digits than its factorization.

1004521131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311266 (or 311263 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1004521131 is about 31694.1813429532. The cubic root of 1004521131 is about 1001.5047781735.

Adding to 1004521131 its reverse (1311254001), we get a palindrome (2315775132).

The spelling of 1004521131 in words is "one billion, four million, five hundred twenty-one thousand, one hundred thirty-one".