159494401 has 4 divisors (see below), whose sum is σ = 173993904. Its totient is φ = 144994900.

The previous prime is 159494389. The next prime is 159494431. The reversal of 159494401 is 104494951.

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 a cyclic number.

It is not a de Polignac number, because 159494401 - 2⁵ = 159494369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159494431) 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, 7249735 + ... + 7249756.

It is an arithmetic number, because the mean of its divisors is an integer number (43498476).

Almost surely, 2^159494401 is an apocalyptic number.

159494401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

159494401 is a deficient number, since it is larger than the sum of its proper divisors (14499503).

159494401 is a wasteful number, since it uses less digits than its factorization.

159494401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14499502.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 159494401 is about 12629.1092718370. The cubic root of 159494401 is about 542.3110837462.

It can be divided in two parts, 159494 and 401, that added together give a triangular number (159895 = T₅₆₅).

The spelling of 159494401 in words is "one hundred fifty-nine million, four hundred ninety-four thousand, four hundred one".