159217149 has 16 divisors (see below), whose sum is σ = 261279872. Its totient is φ = 83982528.

The previous prime is 159217139. The next prime is 159217159. The reversal of 159217149 is 941712951.

It is an interprime number because it is at equal distance from previous prime (159217139) and next prime (159217159).

It is not a de Polignac number, because 159217149 - 2⁵ = 159217117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159217139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291334 + ... + 291879.

It is an arithmetic number, because the mean of its divisors is an integer number (16329992).

Almost surely, 2^159217149 is an apocalyptic number.

It is an amenable number.

159217149 is a deficient number, since it is larger than the sum of its proper divisors (102062723).

159217149 is a wasteful number, since it uses less digits than its factorization.

159217149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583236.

The product of its digits is 22680, while the sum is 39.

The square root of 159217149 is about 12618.1277929810. The cubic root of 159217149 is about 541.9966651030.

It can be divided in two parts, 1592171 and 49, that added together give a triangular number (1592220 = T₁₇₈₄).

The spelling of 159217149 in words is "one hundred fifty-nine million, two hundred seventeen thousand, one hundred forty-nine".