131968451 has 8 divisors (see below), whose sum is σ = 133979664. Its totient is φ = 129962880.

The previous prime is 131968409. The next prime is 131968469. The reversal of 131968451 is 154869131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131968451 - 2⁶ = 131968387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131968351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78815 + ... + 80471.

It is an arithmetic number, because the mean of its divisors is an integer number (16747458).

Almost surely, 2^131968451 is an apocalyptic number.

131968451 is a deficient number, since it is larger than the sum of its proper divisors (2011213).

131968451 is a wasteful number, since it uses less digits than its factorization.

131968451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821.

The product of its digits is 25920, while the sum is 38.

The square root of 131968451 is about 11487.7522170353. The cubic root of 131968451 is about 509.1237690225.

The spelling of 131968451 in words is "one hundred thirty-one million, nine hundred sixty-eight thousand, four hundred fifty-one".