159425623 has 4 divisors (see below), whose sum is σ = 182200720. Its totient is φ = 136650528.

The previous prime is 159425621. The next prime is 159425641. The reversal of 159425623 is 326524951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326524951 = 23 ⋅14196737.

It is not a de Polignac number, because 159425623 - 2¹ = 159425621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159425621) 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, 11387538 + ... + 11387551.

It is an arithmetic number, because the mean of its divisors is an integer number (45550180).

Almost surely, 2^159425623 is an apocalyptic number.

159425623 is a deficient number, since it is larger than the sum of its proper divisors (22775097).

159425623 is an equidigital number, since it uses as much as digits as its factorization.

159425623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775096.

The product of its digits is 64800, while the sum is 37.

The square root of 159425623 is about 12626.3859833287. The cubic root of 159425623 is about 542.2331198089.

The spelling of 159425623 in words is "one hundred fifty-nine million, four hundred twenty-five thousand, six hundred twenty-three".