159785413 has 4 divisors (see below), whose sum is σ = 162404908. Its totient is φ = 157165920.

The previous prime is 159785399. The next prime is 159785449. The reversal of 159785413 is 314587951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314587951 = 23 ⋅13677737.

It can be written as a sum of positive squares in 2 ways, for example, as 25735329 + 134050084 = 5073^2 + 11578^2 .

It is a cyclic number.

It is not a de Polignac number, because 159785413 - 2⁹ = 159784901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 159785413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159788413) 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 3 ways as a sum of consecutive naturals, for example, 1309656 + ... + 1309777.

It is an arithmetic number, because the mean of its divisors is an integer number (40601227).

Almost surely, 2^159785413 is an apocalyptic number.

It is an amenable number.

159785413 is a deficient number, since it is larger than the sum of its proper divisors (2619495).

159785413 is an equidigital number, since it uses as much as digits as its factorization.

159785413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619494.

The product of its digits is 151200, while the sum is 43.

The square root of 159785413 is about 12640.6254987639. The cubic root of 159785413 is about 542.6407152656.

The spelling of 159785413 in words is "one hundred fifty-nine million, seven hundred eighty-five thousand, four hundred thirteen".