136745633 has 4 divisors (see below), whose sum is σ = 139925808. Its totient is φ = 133565460.

The previous prime is 136745629. The next prime is 136745639. The reversal of 136745633 is 336547631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136745633 - 2² = 136745629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136745639) 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, 1590023 + ... + 1590108.

It is an arithmetic number, because the mean of its divisors is an integer number (34981452).

Almost surely, 2^136745633 is an apocalyptic number.

It is an amenable number.

136745633 is a deficient number, since it is larger than the sum of its proper divisors (3180175).

136745633 is an equidigital number, since it uses as much as digits as its factorization.

136745633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180174.

The product of its digits is 136080, while the sum is 38.

The square root of 136745633 is about 11693.8288425990. The cubic root of 136745633 is about 515.1944256004.

The spelling of 136745633 in words is "one hundred thirty-six million, seven hundred forty-five thousand, six hundred thirty-three".