136507646 has 16 divisors (see below), whose sum is σ = 228130560. Its totient is φ = 60728280.

The previous prime is 136507643. The next prime is 136507649. The reversal of 136507646 is 646705631.

It is a happy number.

136507646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (136507643) and next prime (136507649).

It is a super-2 number, since 2×136507646² = 37268674832922632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136507643) 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, 64976 + ... + 67043.

It is an arithmetic number, because the mean of its divisors is an integer number (14258160).

Almost surely, 2^136507646 is an apocalyptic number.

136507646 is a deficient number, since it is larger than the sum of its proper divisors (91622914).

136507646 is a wasteful number, since it uses less digits than its factorization.

136507646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132079.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 136507646 is about 11683.6486595584. The cubic root of 136507646 is about 514.8953769939.

The spelling of 136507646 in words is "one hundred thirty-six million, five hundred seven thousand, six hundred forty-six".