136334857 has 4 divisors (see below), whose sum is σ = 136700740. Its totient is φ = 135968976.

The previous prime is 136334837. The next prime is 136334867. The reversal of 136334857 is 758433631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52722121 + 83612736 = 7261^2 + 9144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136334857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136334837) 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, 182382 + ... + 183127.

It is an arithmetic number, because the mean of its divisors is an integer number (34175185).

Almost surely, 2^136334857 is an apocalyptic number.

It is an amenable number.

136334857 is a deficient number, since it is larger than the sum of its proper divisors (365883).

136334857 is an equidigital number, since it uses as much as digits as its factorization.

136334857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365882.

The product of its digits is 181440, while the sum is 40.

The square root of 136334857 is about 11676.2518386681. The cubic root of 136334857 is about 514.6780367338.

The spelling of 136334857 in words is "one hundred thirty-six million, three hundred thirty-four thousand, eight hundred fifty-seven".