131338554 has 16 divisors (see below), whose sum is σ = 264290592. Its totient is φ = 43510608.

The previous prime is 131338553. The next prime is 131338561. The reversal of 131338554 is 455833131.

It is not an unprimeable number, because it can be changed into a prime (131338553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66169 + ... + 68124.

It is an arithmetic number, because the mean of its divisors is an integer number (16518162).

Almost surely, 2^131338554 is an apocalyptic number.

131338554 is an abundant number, since it is smaller than the sum of its proper divisors (132952038).

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

131338554 is a wasteful number, since it uses less digits than its factorization.

131338554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134461.

The product of its digits is 21600, while the sum is 33.

The square root of 131338554 is about 11460.3033991252. The cubic root of 131338554 is about 508.3124459989.

The spelling of 131338554 in words is "one hundred thirty-one million, three hundred thirty-eight thousand, five hundred fifty-four".