136252747 has 4 divisors (see below), whose sum is σ = 136276416. Its totient is φ = 136229080.

The previous prime is 136252723. The next prime is 136252751. The reversal of 136252747 is 747252631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 136252747 - 2⁷ = 136252619 is a prime.

It is a super-2 number, since 2×136252747² = 37129622130092018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136252447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2997 + ... + 16777.

It is an arithmetic number, because the mean of its divisors is an integer number (34069104).

Almost surely, 2^136252747 is an apocalyptic number.

136252747 is a deficient number, since it is larger than the sum of its proper divisors (23669).

136252747 is an equidigital number, since it uses as much as digits as its factorization.

136252747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23668.

The product of its digits is 70560, while the sum is 37.

The square root of 136252747 is about 11672.7351978874. The cubic root of 136252747 is about 514.5746914330.

The spelling of 136252747 in words is "one hundred thirty-six million, two hundred fifty-two thousand, seven hundred forty-seven".