159413549 has 4 divisors (see below), whose sum is σ = 159614364. Its totient is φ = 159212736.

The previous prime is 159413533. The next prime is 159413587. The reversal of 159413549 is 945314951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 945314951 = 7 ⋅135044993.

It can be written as a sum of positive squares in 2 ways, for example, as 42016324 + 117397225 = 6482^2 + 10835^2 .

It is a cyclic number.

It is not a de Polignac number, because 159413549 - 2⁴ = 159413533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159413509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99212 + ... + 100805.

It is an arithmetic number, because the mean of its divisors is an integer number (39903591).

Almost surely, 2^159413549 is an apocalyptic number.

It is an amenable number.

159413549 is a deficient number, since it is larger than the sum of its proper divisors (200815).

159413549 is an equidigital number, since it uses as much as digits as its factorization.

159413549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200814.

The product of its digits is 97200, while the sum is 41.

The square root of 159413549 is about 12625.9078485470. The cubic root of 159413549 is about 542.2194309011.

The spelling of 159413549 in words is "one hundred fifty-nine million, four hundred thirteen thousand, five hundred forty-nine".