136406511 has 10 divisors (see below), whose sum is σ = 203767872. Its totient is φ = 90937620.

The previous prime is 136406483. The next prime is 136406513. The reversal of 136406511 is 115604631.

136406511 is a `hidden beast` number, since 1 + 3 + 6 + 4 + 0 + 651 + 1 = 666.

136406511 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 136406511 - 2⁶ = 136406447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136406513) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 841935 + ... + 842096.

Almost surely, 2^136406511 is an apocalyptic number.

136406511 is a deficient number, since it is larger than the sum of its proper divisors (67361361).

136406511 is an equidigital number, since it uses as much as digits as its factorization.

136406511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684043 (or 1684034 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 136406511 is about 11679.3198003993. The cubic root of 136406511 is about 514.7681880028.

The spelling of 136406511 in words is "one hundred thirty-six million, four hundred six thousand, five hundred eleven".