1959159923 has 16 divisors (see below), whose sum is σ = 2265506496. Its totient is φ = 1659494400.

The previous prime is 1959159913. The next prime is 1959159929. The reversal of 1959159923 is 3299519591.

It is a cyclic number.

It is not a de Polignac number, because 1959159923 - 2⁴ = 1959159907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1959159929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416915 + ... + 421587.

It is an arithmetic number, because the mean of its divisors is an integer number (141594156).

Almost surely, 2^1959159923 is an apocalyptic number.

1959159923 is a deficient number, since it is larger than the sum of its proper divisors (306346573).

1959159923 is a wasteful number, since it uses less digits than its factorization.

1959159923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374.

The product of its digits is 984150, while the sum is 53.

The square root of 1959159923 is about 44262.3985228998. The cubic root of 1959159923 is about 1251.2861264891.

The spelling of 1959159923 in words is "one billion, nine hundred fifty-nine million, one hundred fifty-nine thousand, nine hundred twenty-three".