136172797 has 8 divisors (see below), whose sum is σ = 138441600. Its totient is φ = 133922880.

The previous prime is 136172779. The next prime is 136172809. The reversal of 136172797 is 797271631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136172797 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 (136173797) 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, 10204 + ... + 19402.

It is an arithmetic number, because the mean of its divisors is an integer number (17305200).

Almost surely, 2^136172797 is an apocalyptic number.

It is an amenable number.

136172797 is a deficient number, since it is larger than the sum of its proper divisors (2268803).

136172797 is a wasteful number, since it uses less digits than its factorization.

136172797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9443.

The product of its digits is 111132, while the sum is 43.

The square root of 136172797 is about 11669.3100481562. The cubic root of 136172797 is about 514.4740248487.

The spelling of 136172797 in words is "one hundred thirty-six million, one hundred seventy-two thousand, seven hundred ninety-seven".