136761945 has 8 divisors (see below), whose sum is σ = 218819136. Its totient is φ = 72939696.

The previous prime is 136761901. The next prime is 136761959. The reversal of 136761945 is 549167631.

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

It is not a de Polignac number, because 136761945 - 2¹¹ = 136759897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136761897 and 136761906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4558717 + ... + 4558746.

It is an arithmetic number, because the mean of its divisors is an integer number (27352392).

Almost surely, 2^136761945 is an apocalyptic number.

136761945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136761945 is a deficient number, since it is larger than the sum of its proper divisors (82057191).

136761945 is an equidigital number, since it uses as much as digits as its factorization.

136761945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117471.

The product of its digits is 136080, while the sum is 42.

The square root of 136761945 is about 11694.5262836936. The cubic root of 136761945 is about 515.2149101482.

The spelling of 136761945 in words is "one hundred thirty-six million, seven hundred sixty-one thousand, nine hundred forty-five".