131304450 has 24 divisors (see below), whose sum is σ = 325635408. Its totient is φ = 35014480.

The previous prime is 131304403. The next prime is 131304457. The reversal of 131304450 is 54403131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131304457) 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, 437532 + ... + 437831.

It is an arithmetic number, because the mean of its divisors is an integer number (13568142).

Almost surely, 2^131304450 is an apocalyptic number.

131304450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131304450 is an abundant number, since it is smaller than the sum of its proper divisors (194330958).

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

131304450 is a wasteful number, since it uses less digits than its factorization.

131304450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875378 (or 875373 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 131304450 is about 11458.8153837995. The cubic root of 131304450 is about 508.2684452395.

Adding to 131304450 its reverse (54403131), we get a palindrome (185707581).

The spelling of 131304450 in words is "one hundred thirty-one million, three hundred four thousand, four hundred fifty".