136149941 has 4 divisors (see below), whose sum is σ = 136399392. Its totient is φ = 135900492.

The previous prime is 136149913. The next prime is 136149947. The reversal of 136149941 is 149941631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 149941631 = 7 ⋅21420233.

It is a cyclic number.

It is not a de Polignac number, because 136149941 - 2¹⁰ = 136148917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136149895 and 136149904.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 123905 + ... + 124998.

It is an arithmetic number, because the mean of its divisors is an integer number (34099848).

Almost surely, 2^136149941 is an apocalyptic number.

It is an amenable number.

136149941 is a deficient number, since it is larger than the sum of its proper divisors (249451).

136149941 is an equidigital number, since it uses as much as digits as its factorization.

136149941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249450.

The product of its digits is 23328, while the sum is 38.

The square root of 136149941 is about 11668.3306860922. The cubic root of 136149941 is about 514.4452391770.

The spelling of 136149941 in words is "one hundred thirty-six million, one hundred forty-nine thousand, nine hundred forty-one".