136174397 has 4 divisors (see below), whose sum is σ = 136241916. Its totient is φ = 136106880.

The previous prime is 136174373. The next prime is 136174411. The reversal of 136174397 is 793471631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793471631 = 139 ⋅5708429.

It can be written as a sum of positive squares in 2 ways, for example, as 50537881 + 85636516 = 7109^2 + 9254^2 .

It is a cyclic number.

It is not a de Polignac number, because 136174397 - 2⁸ = 136174141 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 (136174327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30638 + ... + 34799.

It is an arithmetic number, because the mean of its divisors is an integer number (34060479).

Almost surely, 2^136174397 is an apocalyptic number.

It is an amenable number.

136174397 is a deficient number, since it is larger than the sum of its proper divisors (67519).

136174397 is an equidigital number, since it uses as much as digits as its factorization.

136174397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67518.

The product of its digits is 95256, while the sum is 41.

The square root of 136174397 is about 11669.3786038503. The cubic root of 136174397 is about 514.4760398258.

The spelling of 136174397 in words is "one hundred thirty-six million, one hundred seventy-four thousand, three hundred ninety-seven".