131304550 has 72 divisors (see below), whose sum is σ = 271623240. Its totient is φ = 47174400.

The previous prime is 131304533. The next prime is 131304571. The reversal of 131304550 is 55403131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 346261 + ... + 346639.

It is an arithmetic number, because the mean of its divisors is an integer number (3772545).

Almost surely, 2^131304550 is an apocalyptic number.

131304550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131304550 is an abundant number, since it is smaller than the sum of its proper divisors (140318690).

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

131304550 is a wasteful number, since it uses less digits than its factorization.

131304550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 131304550 is about 11458.8197472515. The cubic root of 131304550 is about 508.2685742700.

Adding to 131304550 its reverse (55403131), we get a palindrome (186707681).

The spelling of 131304550 in words is "one hundred thirty-one million, three hundred four thousand, five hundred fifty".