131893797 has 16 divisors (see below), whose sum is σ = 205258752. Its totient is φ = 73763760.

The previous prime is 131893793. The next prime is 131893807. The reversal of 131893797 is 797398131.

It is not a de Polignac number, because 131893797 - 2² = 131893793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131893793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65829 + ... + 67802.

It is an arithmetic number, because the mean of its divisors is an integer number (12828672).

Almost surely, 2^131893797 is an apocalyptic number.

It is an amenable number.

131893797 is a deficient number, since it is larger than the sum of its proper divisors (73364955).

131893797 is a wasteful number, since it uses less digits than its factorization.

131893797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133688.

The product of its digits is 285768, while the sum is 48.

The square root of 131893797 is about 11484.5024707211. The cubic root of 131893797 is about 509.0277478527.

The spelling of 131893797 in words is "one hundred thirty-one million, eight hundred ninety-three thousand, seven hundred ninety-seven".