131001404 has 12 divisors (see below), whose sum is σ = 233011128. Its totient is φ = 64426800.

The previous prime is 131001379. The next prime is 131001407. The reversal of 131001404 is 404100131.

It is a happy number.

It is a super-2 number, since 2×131001404² = 34322735699942432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131001407) 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 3 ways as a sum of consecutive naturals, for example, 268202 + ... + 268689.

It is an arithmetic number, because the mean of its divisors is an integer number (19417594).

Almost surely, 2^131001404 is an apocalyptic number.

It is an amenable number.

131001404 is a deficient number, since it is larger than the sum of its proper divisors (102009724).

131001404 is a wasteful number, since it uses less digits than its factorization.

131001404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536956 (or 536954 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131001404 is about 11445.5844761200. The cubic root of 131001404 is about 507.8771222010.

Adding to 131001404 its reverse (404100131), we get a palindrome (535101535).

The spelling of 131001404 in words is "one hundred thirty-one million, one thousand, four hundred four".