136172123 has 2 divisors, whose sum is σ = 136172124. Its totient is φ = 136172122.

The previous prime is 136172087. The next prime is 136172131. The reversal of 136172123 is 321271631.

136172123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136172123 - 2¹⁰ = 136171099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136172092 and 136172101.

It is not a weakly prime, because it can be changed into another prime (136172623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68086061 + 68086062.

It is an arithmetic number, because the mean of its divisors is an integer number (68086062).

Almost surely, 2^136172123 is an apocalyptic number.

136172123 is a deficient number, since it is larger than the sum of its proper divisors (1).

136172123 is an equidigital number, since it uses as much as digits as its factorization.

136172123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 136172123 is about 11669.2811689495. The cubic root of 136172123 is about 514.4731760348.

The spelling of 136172123 in words is "one hundred thirty-six million, one hundred seventy-two thousand, one hundred twenty-three".