131783450 has 24 divisors (see below), whose sum is σ = 245421792. Its totient is φ = 52647920.

The previous prime is 131783423. The next prime is 131783459. The reversal of 131783450 is 54387131.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (131783459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70427 + ... + 72273.

It is an arithmetic number, because the mean of its divisors is an integer number (10225908).

Almost surely, 2^131783450 is an apocalyptic number.

131783450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131783450 is a deficient number, since it is larger than the sum of its proper divisors (113638342).

131783450 is a wasteful number, since it uses less digits than its factorization.

131783450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286 (or 3281 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 131783450 is about 11479.6972956607. The cubic root of 131783450 is about 508.8857513930.

The spelling of 131783450 in words is "one hundred thirty-one million, seven hundred eighty-three thousand, four hundred fifty".