136162521 has 12 divisors (see below), whose sum is σ = 214559280. Its totient is φ = 82522680.

The previous prime is 136162513. The next prime is 136162541. The reversal of 136162521 is 125261631.

136162521 is a `hidden beast` number, since 1 + 3 + 616 + 25 + 21 = 666.

136162521 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 136162521 - 2³ = 136162513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136162541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687591 + ... + 687788.

It is an arithmetic number, because the mean of its divisors is an integer number (17879940).

Almost surely, 2^136162521 is an apocalyptic number.

136162521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136162521 is a deficient number, since it is larger than the sum of its proper divisors (78396759).

136162521 is a wasteful number, since it uses less digits than its factorization.

136162521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375396 (or 1375393 counting only the distinct ones).

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

The square root of 136162521 is about 11668.8697396106. The cubic root of 136162521 is about 514.4610832818.

The spelling of 136162521 in words is "one hundred thirty-six million, one hundred sixty-two thousand, five hundred twenty-one".