159649401 has 4 divisors (see below), whose sum is σ = 212865872. Its totient is φ = 106432932.

The previous prime is 159649361. The next prime is 159649433. The reversal of 159649401 is 104946951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 159649401 - 2¹⁴ = 159633017 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 159649401.

It is not an unprimeable number, because it can be changed into a prime (159647401) 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, 26608231 + ... + 26608236.

It is an arithmetic number, because the mean of its divisors is an integer number (53216468).

Almost surely, 2^159649401 is an apocalyptic number.

It is an amenable number.

159649401 is a deficient number, since it is larger than the sum of its proper divisors (53216471).

159649401 is an equidigital number, since it uses as much as digits as its factorization.

159649401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53216470.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 159649401 is about 12635.2443981112. The cubic root of 159649401 is about 542.4867032921.

The spelling of 159649401 in words is "one hundred fifty-nine million, six hundred forty-nine thousand, four hundred one".