131618260 has 12 divisors (see below), whose sum is σ = 276398388. Its totient is φ = 52647296.

The previous prime is 131618257. The next prime is 131618293. The reversal of 131618260 is 62816131.

131618260 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56761156 + 74857104 = 7534^2 + 8652^2 .

131618260 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3290437 + ... + 3290476.

It is an arithmetic number, because the mean of its divisors is an integer number (23033199).

Almost surely, 2^131618260 is an apocalyptic number.

131618260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131618260 is an abundant number, since it is smaller than the sum of its proper divisors (144780128).

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

131618260 is a wasteful number, since it uses less digits than its factorization.

131618260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6580922 (or 6580920 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 131618260 is about 11472.5001634343. The cubic root of 131618260 is about 508.6730337721.

The spelling of 131618260 in words is "one hundred thirty-one million, six hundred eighteen thousand, two hundred sixty".