131344330 has 32 divisors (see below), whose sum is σ = 256330368. Its totient is φ = 48168000.

The previous prime is 131344271. The next prime is 131344333. The reversal of 131344330 is 33443131.

131344330 = 131² + 132² + ... + 734².

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131344333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16285 + ... + 22975.

It is an arithmetic number, because the mean of its divisors is an integer number (8010324).

Almost surely, 2^131344330 is an apocalyptic number.

131344330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131344330 is a deficient number, since it is larger than the sum of its proper divisors (124986038).

131344330 is a wasteful number, since it uses less digits than its factorization.

131344330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 131344330 is about 11460.5553966638. Note that the first 3 decimals coincide. The cubic root of 131344330 is about 508.3198974023.

Adding to 131344330 its reverse (33443131), we get a palindrome (164787461).

The spelling of 131344330 in words is "one hundred thirty-one million, three hundred forty-four thousand, three hundred thirty".