159803401 has 4 divisors (see below), whose sum is σ = 159876100. Its totient is φ = 159730704.

The previous prime is 159803381. The next prime is 159803411. The reversal of 159803401 is 104308951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36060025 + 123743376 = 6005^2 + 11124^2 .

It is a cyclic number.

It is not a de Polignac number, because 159803401 - 2¹¹ = 159801353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159803411) 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, 32946 + ... + 37483.

It is an arithmetic number, because the mean of its divisors is an integer number (39969025).

Almost surely, 2^159803401 is an apocalyptic number.

It is an amenable number.

159803401 is a deficient number, since it is larger than the sum of its proper divisors (72699).

159803401 is an equidigital number, since it uses as much as digits as its factorization.

159803401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72698.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 159803401 is about 12641.3369941632. The cubic root of 159803401 is about 542.6610772723.

The spelling of 159803401 in words is "one hundred fifty-nine million, eight hundred three thousand, four hundred one".