136640762 has 4 divisors (see below), whose sum is σ = 204961146. Its totient is φ = 68320380.

The previous prime is 136640759. The next prime is 136640773. The reversal of 136640762 is 267046631.

136640762 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 267046631 = 1709 ⋅156259.

It can be written as a sum of positive squares in only one way, i.e., 95667961 + 40972801 = 9781^2 + 6401^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34160189 + ... + 34160192.

Almost surely, 2^136640762 is an apocalyptic number.

136640762 is a deficient number, since it is larger than the sum of its proper divisors (68320384).

136640762 is an equidigital number, since it uses as much as digits as its factorization.

136640762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68320383.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 136640762 is about 11689.3439507955. The cubic root of 136640762 is about 515.0626900780.

The spelling of 136640762 in words is "one hundred thirty-six million, six hundred forty thousand, seven hundred sixty-two".