159142433 has 2 divisors, whose sum is σ = 159142434. Its totient is φ = 159142432.

The previous prime is 159142421. The next prime is 159142447. The reversal of 159142433 is 334241951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136025569 + 23116864 = 11663^2 + 4808^2 .

It is an emirp because it is prime and its reverse (334241951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159142433 - 2⁶ = 159142369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 159142433.

It is not a weakly prime, because it can be changed into another prime (159142493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79571216 + 79571217.

It is an arithmetic number, because the mean of its divisors is an integer number (79571217).

Almost surely, 2^159142433 is an apocalyptic number.

It is an amenable number.

159142433 is a deficient number, since it is larger than the sum of its proper divisors (1).

159142433 is an equidigital number, since it uses as much as digits as its factorization.

159142433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 159142433 is about 12615.1667844702. The cubic root of 159142433 is about 541.9118707215.

The spelling of 159142433 in words is "one hundred fifty-nine million, one hundred forty-two thousand, four hundred thirty-three".