1604260131 has 16 divisors (see below), whose sum is σ = 2267554464. Its totient is φ = 1005387264.

The previous prime is 1604260129. The next prime is 1604260139. The reversal of 1604260131 is 1310624061.

It is not a de Polignac number, because 1604260131 - 2¹ = 1604260129 is a prime.

It is a super-2 number, since 2×1604260131² = 5147301135832274322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1604260139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25065 + ... + 61941.

It is an arithmetic number, because the mean of its divisors is an integer number (141722154).

Almost surely, 2^1604260131 is an apocalyptic number.

1604260131 is a deficient number, since it is larger than the sum of its proper divisors (663294333).

1604260131 is a wasteful number, since it uses less digits than its factorization.

1604260131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37750.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1604260131 is about 40053.2162379003. The cubic root of 1604260131 is about 1170.6442335581.

Adding to 1604260131 its reverse (1310624061), we get a palindrome (2914884192).

The spelling of 1604260131 in words is "one billion, six hundred four million, two hundred sixty thousand, one hundred thirty-one".