131630550 has 48 divisors (see below), whose sum is σ = 333407232. Its totient is φ = 34352800.

The previous prime is 131630533. The next prime is 131630563. The reversal of 131630550 is 55036131.

It is a self number, because there is not a number n which added to its sum of digits gives 131630550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2286 + ... + 16385.

It is an arithmetic number, because the mean of its divisors is an integer number (6945984).

Almost surely, 2^131630550 is an apocalyptic number.

131630550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131630550 is an abundant number, since it is smaller than the sum of its proper divisors (201776682).

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

131630550 is a wasteful number, since it uses less digits than its factorization.

131630550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18733 (or 18728 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 131630550 is about 11473.0357796008. The cubic root of 131630550 is about 508.6888659142.

Adding to 131630550 its reverse (55036131), we get a palindrome (186666681).

The spelling of 131630550 in words is "one hundred thirty-one million, six hundred thirty thousand, five hundred fifty".