136137553 has 4 divisors (see below), whose sum is σ = 136541860. Its totient is φ = 135733248.

The previous prime is 136137539. The next prime is 136137563. The reversal of 136137553 is 355731631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355731631 = 1153 ⋅308527.

It can be written as a sum of positive squares in 2 ways, for example, as 30603024 + 105534529 = 5532^2 + 10273^2 .

It is a cyclic number.

It is not a de Polignac number, because 136137553 - 2⁹ = 136137041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136137563) 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, 201648 + ... + 202321.

It is an arithmetic number, because the mean of its divisors is an integer number (34135465).

Almost surely, 2^136137553 is an apocalyptic number.

It is an amenable number.

136137553 is a deficient number, since it is larger than the sum of its proper divisors (404307).

136137553 is an equidigital number, since it uses as much as digits as its factorization.

136137553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404306.

The product of its digits is 28350, while the sum is 34.

The square root of 136137553 is about 11667.7998354446. The cubic root of 136137553 is about 514.4296359363.

The spelling of 136137553 in words is "one hundred thirty-six million, one hundred thirty-seven thousand, five hundred fifty-three".