136506123 has 36 divisors (see below), whose sum is σ = 217740432. Its totient is φ = 81920160.

The previous prime is 136506121. The next prime is 136506133. The reversal of 136506123 is 321605631.

136506123 is a `hidden beast` number, since 1 + 3 + 650 + 6 + 1 + 2 + 3 = 666.

It is not a de Polignac number, because 136506123 - 2¹ = 136506121 is a prime.

It is a super-2 number, since 2×136506123² = 37267843232982258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136506121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 216018 + ... + 216648.

Almost surely, 2^136506123 is an apocalyptic number.

136506123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136506123 is a deficient number, since it is larger than the sum of its proper divisors (81234309).

136506123 is a wasteful number, since it uses less digits than its factorization.

136506123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 136506123 is about 11683.5834828190. The cubic root of 136506123 is about 514.8934621107.

The spelling of 136506123 in words is "one hundred thirty-six million, five hundred six thousand, one hundred twenty-three".