131644930 has 32 divisors (see below), whose sum is σ = 246628800. Its totient is φ = 50551872.

The previous prime is 131644921. The next prime is 131644969. The reversal of 131644930 is 39446131.

It is a super-3 number, since 3×131644930³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131644892 and 131644901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22776 + ... + 27964.

It is an arithmetic number, because the mean of its divisors is an integer number (7707150).

Almost surely, 2^131644930 is an apocalyptic number.

131644930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131644930 is a deficient number, since it is larger than the sum of its proper divisors (114983870).

131644930 is a wasteful number, since it uses less digits than its factorization.

131644930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 131644930 is about 11473.6624492792. The cubic root of 131644930 is about 508.7073891713.

The spelling of 131644930 in words is "one hundred thirty-one million, six hundred forty-four thousand, nine hundred thirty".