136149945 has 8 divisors (see below), whose sum is σ = 217839936. Its totient is φ = 72613296.

The previous prime is 136149913. The next prime is 136149947. The reversal of 136149945 is 549941631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136149945 - 2⁵ = 136149913 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136149897 and 136149906.

It is not an unprimeable number, because it can be changed into a prime (136149947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4538317 + ... + 4538346.

It is an arithmetic number, because the mean of its divisors is an integer number (27229992).

Almost surely, 2^136149945 is an apocalyptic number.

136149945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136149945 is a deficient number, since it is larger than the sum of its proper divisors (81689991).

136149945 is an equidigital number, since it uses as much as digits as its factorization.

136149945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9076671.

The product of its digits is 116640, while the sum is 42.

The square root of 136149945 is about 11668.3308574963. The cubic root of 136149945 is about 514.4452442151.

The spelling of 136149945 in words is "one hundred thirty-six million, one hundred forty-nine thousand, nine hundred forty-five".