131242554 has 24 divisors (see below), whose sum is σ = 296723232. Its totient is φ = 41845320.

The previous prime is 131242541. The next prime is 131242571. The reversal of 131242554 is 455242131.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158092 + ... + 158919.

It is an arithmetic number, because the mean of its divisors is an integer number (12363468).

Almost surely, 2^131242554 is an apocalyptic number.

131242554 is an abundant number, since it is smaller than the sum of its proper divisors (165480678).

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

131242554 is a wasteful number, since it uses less digits than its factorization.

131242554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317042 (or 317039 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 131242554 is about 11456.1142626983. The cubic root of 131242554 is about 508.1885679561.

Adding to 131242554 its reverse (455242131), we get a palindrome (586484685).

The spelling of 131242554 in words is "one hundred thirty-one million, two hundred forty-two thousand, five hundred fifty-four".