131404100 has 36 divisors (see below), whose sum is σ = 286312404. Its totient is φ = 52346880.

The previous prime is 131404081. The next prime is 131404103. The reversal of 131404100 is 1404131.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3125824 + 128278276 = 1768^2 + 11326^2 .

It is not an unprimeable number, because it can be changed into a prime (131404103) 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, 23144 + ... + 28256.

Almost surely, 2^131404100 is an apocalyptic number.

131404100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131404100 is an abundant number, since it is smaller than the sum of its proper divisors (154908304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131404100 is a wasteful number, since it uses less digits than its factorization.

131404100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384 (or 5377 counting only the distinct ones).

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

The square root of 131404100 is about 11463.1627398376. The cubic root of 131404100 is about 508.3969916396.

Adding to 131404100 its reverse (1404131), we get a palindrome (132808231).

The spelling of 131404100 in words is "one hundred thirty-one million, four hundred four thousand, one hundred".