131324930 has 24 divisors (see below), whose sum is σ = 259830396. Its totient is φ = 47754080.

The previous prime is 131324911. The next prime is 131324933. The reversal of 131324930 is 39423131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111281401 + 20043529 = 10549^2 + 4477^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131324930.

It is not an unprimeable number, because it can be changed into a prime (131324933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53057 + ... + 55476.

Almost surely, 2^131324930 is an apocalyptic number.

131324930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131324930 is a deficient number, since it is larger than the sum of its proper divisors (128505466).

131324930 is a wasteful number, since it uses less digits than its factorization.

131324930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108562 (or 108551 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 131324930 is about 11459.7089840886. The cubic root of 131324930 is about 508.2948693163.

The spelling of 131324930 in words is "one hundred thirty-one million, three hundred twenty-four thousand, nine hundred thirty".