159347477 has 8 divisors (see below), whose sum is σ = 168834456. Its totient is φ = 149873152.

The previous prime is 159347423. The next prime is 159347497. The reversal of 159347477 is 774743951.

It can be written as a sum of positive squares in 4 ways, for example, as 22714756 + 136632721 = 4766^2 + 11689^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 159347477 - 2¹² = 159343381 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 (159347407) 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 7 ways as a sum of consecutive naturals, for example, 38723 + ... + 42639.

It is an arithmetic number, because the mean of its divisors is an integer number (21104307).

Almost surely, 2^159347477 is an apocalyptic number.

159347477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

159347477 is a deficient number, since it is larger than the sum of its proper divisors (9486979).

159347477 is a wasteful number, since it uses less digits than its factorization.

159347477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327.

The product of its digits is 740880, while the sum is 47.

The square root of 159347477 is about 12623.2910526534. The cubic root of 159347477 is about 542.1445094716.

The spelling of 159347477 in words is "one hundred fifty-nine million, three hundred forty-seven thousand, four hundred seventy-seven".