131488090 has 8 divisors (see below), whose sum is σ = 236678580. Its totient is φ = 52595232.

The previous prime is 131488057. The next prime is 131488099. The reversal of 131488090 is 90884131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 122744241 + 8743849 = 11079^2 + 2957^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131488099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6574395 + ... + 6574414.

Almost surely, 2^131488090 is an apocalyptic number.

131488090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131488090 is a deficient number, since it is larger than the sum of its proper divisors (105190490).

131488090 is a wasteful number, since it uses less digits than its factorization.

131488090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148816.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 131488090 is about 11466.8256287431. The cubic root of 131488090 is about 508.5052865074.

The spelling of 131488090 in words is "one hundred thirty-one million, four hundred eighty-eight thousand, ninety".