136606045 has 4 divisors (see below), whose sum is σ = 163927260. Its totient is φ = 109284832.

The previous prime is 136606021. The next prime is 136606061. The reversal of 136606045 is 540606631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540606631 = 3257 ⋅165983.

It can be written as a sum of positive squares in 2 ways, for example, as 98128836 + 38477209 = 9906^2 + 6203^2 .

It is a cyclic number.

It is not a de Polignac number, because 136606045 - 2¹⁵ = 136573277 is a prime.

It is a super-2 number, since 2×136606045² = 37322423061084050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 136605998 and 136606016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13660600 + ... + 13660609.

It is an arithmetic number, because the mean of its divisors is an integer number (40981815).

Almost surely, 2^136606045 is an apocalyptic number.

It is an amenable number.

136606045 is a deficient number, since it is larger than the sum of its proper divisors (27321215).

136606045 is an equidigital number, since it uses as much as digits as its factorization.

136606045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27321214.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 136606045 is about 11687.8588714957. The cubic root of 136606045 is about 515.0190648675.

The spelling of 136606045 in words is "one hundred thirty-six million, six hundred six thousand, forty-five".