136739841 has 24 divisors (see below), whose sum is σ = 216100224. Its totient is φ = 76658400.

The previous prime is 136739839. The next prime is 136739851. The reversal of 136739841 is 148937631.

It is not a de Polignac number, because 136739841 - 2¹ = 136739839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136739793 and 136739802.

It is not an unprimeable number, because it can be changed into a prime (136739851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 985 + ... + 16566.

It is an arithmetic number, because the mean of its divisors is an integer number (9004176).

Almost surely, 2^136739841 is an apocalyptic number.

It is an amenable number.

136739841 is a deficient number, since it is larger than the sum of its proper divisors (79360383).

136739841 is a wasteful number, since it uses less digits than its factorization.

136739841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17621 (or 17614 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 136739841 is about 11693.5811879851. The cubic root of 136739841 is about 515.1871516369.

The spelling of 136739841 in words is "one hundred thirty-six million, seven hundred thirty-nine thousand, eight hundred forty-one".