149836159 has 4 divisors (see below), whose sum is σ = 163457640. Its totient is φ = 136214680.

The previous prime is 149836157. The next prime is 149836177. The reversal of 149836159 is 951638941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 951638941 = 11 ⋅86512631.

It is a cyclic number.

It is not a de Polignac number, because 149836159 - 2¹ = 149836157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149836151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6810724 + ... + 6810745.

It is an arithmetic number, because the mean of its divisors is an integer number (40864410).

Almost surely, 2^149836159 is an apocalyptic number.

149836159 is a deficient number, since it is larger than the sum of its proper divisors (13621481).

149836159 is a wasteful number, since it uses less digits than its factorization.

149836159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13621480.

The product of its digits is 233280, while the sum is 46.

The square root of 149836159 is about 12240.7581056077. The cubic root of 149836159 is about 531.1357618447.

The spelling of 149836159 in words is "one hundred forty-nine million, eight hundred thirty-six thousand, one hundred fifty-nine".