136074949 has 4 divisors (see below), whose sum is σ = 136373164. Its totient is φ = 135776736.

The previous prime is 136074947. The next prime is 136074959. The reversal of 136074949 is 949470631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949470631 = 73 ⋅13006447.

It can be written as a sum of positive squares in 2 ways, for example, as 57486724 + 78588225 = 7582^2 + 8865^2 .

It is a cyclic number.

It is not a de Polignac number, because 136074949 - 2¹ = 136074947 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 (136074943) 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, 148422 + ... + 149335.

It is an arithmetic number, because the mean of its divisors is an integer number (34093291).

Almost surely, 2^136074949 is an apocalyptic number.

It is an amenable number.

136074949 is a deficient number, since it is larger than the sum of its proper divisors (298215).

136074949 is an equidigital number, since it uses as much as digits as its factorization.

136074949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298214.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 136074949 is about 11665.1167589527. The cubic root of 136074949 is about 514.3507689127.

The spelling of 136074949 in words is "one hundred thirty-six million, seventy-four thousand, nine hundred forty-nine".