136248157 has 4 divisors (see below), whose sum is σ = 136954300. Its totient is φ = 135542016.

The previous prime is 136248139. The next prime is 136248163. The reversal of 136248157 is 751842631.

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 20169081 + 116079076 = 4491^2 + 10774^2 .

It is a cyclic number.

It is not a de Polignac number, because 136248157 - 2⁷ = 136248029 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 (136248127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352782 + ... + 353167.

It is an arithmetic number, because the mean of its divisors is an integer number (34238575).

Almost surely, 2^136248157 is an apocalyptic number.

It is an amenable number.

136248157 is a deficient number, since it is larger than the sum of its proper divisors (706143).

136248157 is an equidigital number, since it uses as much as digits as its factorization.

136248157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706142.

The product of its digits is 40320, while the sum is 37.

The square root of 136248157 is about 11672.5385842155. The cubic root of 136248157 is about 514.5689131413.

The spelling of 136248157 in words is "one hundred thirty-six million, two hundred forty-eight thousand, one hundred fifty-seven".