136936057 has 4 divisors (see below), whose sum is σ = 141658020. Its totient is φ = 132214096.

The previous prime is 136936031. The next prime is 136936061. The reversal of 136936057 is 750639631.

136936057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 117961321 + 18974736 = 10861^2 + 4356^2 .

It is a cyclic number.

It is not a de Polignac number, because 136936057 - 2¹⁵ = 136903289 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136936157) 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, 2360938 + ... + 2360995.

It is an arithmetic number, because the mean of its divisors is an integer number (35414505).

Almost surely, 2^136936057 is an apocalyptic number.

It is an amenable number.

136936057 is a deficient number, since it is larger than the sum of its proper divisors (4721963).

136936057 is an equidigital number, since it uses as much as digits as its factorization.

136936057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721962.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 136936057 is about 11701.9680823356. The cubic root of 136936057 is about 515.4334579257.

The spelling of 136936057 in words is "one hundred thirty-six million, nine hundred thirty-six thousand, fifty-seven".