136764477 has 8 divisors (see below), whose sum is σ = 202614080. Its totient is φ = 91176300.

The previous prime is 136764461. The next prime is 136764491. The reversal of 136764477 is 774467631.

136764477 is a `hidden beast` number, since 136 + 76 + 447 + 7 = 666.

136764477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136764477 - 2⁴ = 136764461 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 (136764437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532649 + ... + 2532702.

It is an arithmetic number, because the mean of its divisors is an integer number (25326760).

Almost surely, 2^136764477 is an apocalyptic number.

It is an amenable number.

136764477 is a deficient number, since it is larger than the sum of its proper divisors (65849603).

136764477 is an equidigital number, since it uses as much as digits as its factorization.

136764477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065360 (or 5065354 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The square root of 136764477 is about 11694.6345389670. The cubic root of 136764477 is about 515.2180896781.

The spelling of 136764477 in words is "one hundred thirty-six million, seven hundred sixty-four thousand, four hundred seventy-seven".