131233650 has 24 divisors (see below), whose sum is σ = 325459824. Its totient is φ = 34995600.

The previous prime is 131233621. The next prime is 131233673. The reversal of 131233650 is 56332131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131233650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437296 + ... + 437595.

It is an arithmetic number, because the mean of its divisors is an integer number (13560826).

Almost surely, 2^131233650 is an apocalyptic number.

131233650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131233650 is an abundant number, since it is smaller than the sum of its proper divisors (194226174).

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

131233650 is a wasteful number, since it uses less digits than its factorization.

131233650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874906 (or 874901 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 131233650 is about 11455.7256426645. The cubic root of 131233650 is about 508.1770752068.

Adding to 131233650 its reverse (56332131), we get a palindrome (187565781).

The spelling of 131233650 in words is "one hundred thirty-one million, two hundred thirty-three thousand, six hundred fifty".