131651407 has 8 divisors (see below), whose sum is σ = 134310176. Its totient is φ = 129019392.

The previous prime is 131651321. The next prime is 131651419. The reversal of 131651407 is 704156131.

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 131651407 - 2⁷ = 131651279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131651467) 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, 3403 + ... + 16579.

It is an arithmetic number, because the mean of its divisors is an integer number (16788772).

Almost surely, 2^131651407 is an apocalyptic number.

131651407 is a deficient number, since it is larger than the sum of its proper divisors (2658769).

131651407 is a wasteful number, since it uses less digits than its factorization.

131651407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 131651407 is about 11473.9447009300. The cubic root of 131651407 is about 508.7157319251.

The spelling of 131651407 in words is "one hundred thirty-one million, six hundred fifty-one thousand, four hundred seven".