159749385 has 8 divisors (see below), whose sum is σ = 255599040. Its totient is φ = 85199664.

The previous prime is 159749383. The next prime is 159749389. The reversal of 159749385 is 583947951.

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

It is not a de Polignac number, because 159749385 - 2¹ = 159749383 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (159749383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5324965 + ... + 5324994.

It is an arithmetic number, because the mean of its divisors is an integer number (31949880).

Almost surely, 2^159749385 is an apocalyptic number.

159749385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159749385 is a deficient number, since it is larger than the sum of its proper divisors (95849655).

159749385 is a wasteful number, since it uses less digits than its factorization.

159749385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649967.

The product of its digits is 1360800, while the sum is 51.

The square root of 159749385 is about 12639.2003307171. The cubic root of 159749385 is about 542.5999277935.

It can be divided in two parts, 1597493 and 85, that added together give a triangular number (1597578 = T₁₇₈₇).

The spelling of 159749385 in words is "one hundred fifty-nine million, seven hundred forty-nine thousand, three hundred eighty-five".