133131297 has 8 divisors (see below), whose sum is σ = 191162944. Its totient is φ = 81926928.

The previous prime is 133131293. The next prime is 133131343. The reversal of 133131297 is 792131331.

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

It is not a de Polignac number, because 133131297 - 2² = 133131293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133131293) 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, 1706773 + ... + 1706850.

It is an arithmetic number, because the mean of its divisors is an integer number (23895368).

Almost surely, 2^133131297 is an apocalyptic number.

It is an amenable number.

133131297 is a deficient number, since it is larger than the sum of its proper divisors (58031647).

133131297 is a wasteful number, since it uses less digits than its factorization.

133131297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3413639.

The product of its digits is 3402, while the sum is 30.

The square root of 133131297 is about 11538.2536373578. The cubic root of 133131297 is about 510.6147872404.

The spelling of 133131297 in words is "one hundred thirty-three million, one hundred thirty-one thousand, two hundred ninety-seven".