131320454 has 8 divisors (see below), whose sum is σ = 197478048. Its totient is φ = 65494440.

The previous prime is 131320451. The next prime is 131320477. The reversal of 131320454 is 454023131.

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

It is a super-2 number, since 2×131320454² = 34490123277532232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320451) 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, 81902 + ... + 83489.

It is an arithmetic number, because the mean of its divisors is an integer number (24684756).

Almost surely, 2^131320454 is an apocalyptic number.

131320454 is a deficient number, since it is larger than the sum of its proper divisors (66157594).

131320454 is a wasteful number, since it uses less digits than its factorization.

131320454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165790.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 131320454 is about 11459.5136895071. The cubic root of 131320454 is about 508.2890944451.

Adding to 131320454 its reverse (454023131), we get a palindrome (585343585).

The spelling of 131320454 in words is "one hundred thirty-one million, three hundred twenty thousand, four hundred fifty-four".