131159897 has 8 divisors (see below), whose sum is σ = 143283072. Its totient is φ = 119070000.

The previous prime is 131159893. The next prime is 131159909. The reversal of 131159897 is 798951131.

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 131159897 - 2² = 131159893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131159893) 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, 323 + ... + 16199.

It is an arithmetic number, because the mean of its divisors is an integer number (17910384).

Almost surely, 2^131159897 is an apocalyptic number.

It is an amenable number.

131159897 is a deficient number, since it is larger than the sum of its proper divisors (12123175).

131159897 is a wasteful number, since it uses less digits than its factorization.

131159897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16639.

The product of its digits is 68040, while the sum is 44.

The square root of 131159897 is about 11452.5061449449. The cubic root of 131159897 is about 508.0818592639.

The spelling of 131159897 in words is "one hundred thirty-one million, one hundred fifty-nine thousand, eight hundred ninety-seven".