131868450 has 72 divisors (see below), whose sum is σ = 404908608. Its totient is φ = 30140640.

The previous prime is 131868433. The next prime is 131868461. The reversal of 131868450 is 54868131.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17782 + ... + 24081.

Almost surely, 2^131868450 is an apocalyptic number.

131868450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131868450 is an abundant number, since it is smaller than the sum of its proper divisors (273040158).

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

131868450 is a wasteful number, since it uses less digits than its factorization.

131868450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41888 (or 41880 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 131868450 is about 11483.3988870891. The cubic root of 131868450 is about 508.9951378963.

The spelling of 131868450 in words is "one hundred thirty-one million, eight hundred sixty-eight thousand, four hundred fifty".