136996474 has 4 divisors (see below), whose sum is σ = 205494714. Its totient is φ = 68498236.

The previous prime is 136996439. The next prime is 136996477. The reversal of 136996474 is 474699631.

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

It can be written as a sum of positive squares in only one way, i.e., 97871449 + 39125025 = 9893^2 + 6255^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (136996477) 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 as a sum of consecutive naturals, namely, 34249117 + ... + 34249120.

Almost surely, 2^136996474 is an apocalyptic number.

136996474 is a deficient number, since it is larger than the sum of its proper divisors (68498240).

136996474 is an equidigital number, since it uses as much as digits as its factorization.

136996474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68498239.

The product of its digits is 979776, while the sum is 49.

The square root of 136996474 is about 11704.5492864954. The cubic root of 136996474 is about 515.5092508789.

The spelling of 136996474 in words is "one hundred thirty-six million, nine hundred ninety-six thousand, four hundred seventy-four".