136744753 has 4 divisors (see below), whose sum is σ = 144788580. Its totient is φ = 128700928.

The previous prime is 136744747. The next prime is 136744759. The reversal of 136744753 is 357447631.

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

It is an interprime number because it is at equal distance from previous prime (136744747) and next prime (136744759).

It can be written as a sum of positive squares in 2 ways, for example, as 123143409 + 13601344 = 11097^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 136744753 - 2⁵ = 136744721 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 (136744759) 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, 4021888 + ... + 4021921.

It is an arithmetic number, because the mean of its divisors is an integer number (36197145).

Almost surely, 2^136744753 is an apocalyptic number.

It is an amenable number.

136744753 is a deficient number, since it is larger than the sum of its proper divisors (8043827).

136744753 is an equidigital number, since it uses as much as digits as its factorization.

136744753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8043826.

The product of its digits is 211680, while the sum is 40.

The square root of 136744753 is about 11693.7912158547. The cubic root of 136744753 is about 515.1933204535.

The spelling of 136744753 in words is "one hundred thirty-six million, seven hundred forty-four thousand, seven hundred fifty-three".