159029993 has 2 divisors, whose sum is σ = 159029994. Its totient is φ = 159029992.

The previous prime is 159029987. The next prime is 159030007. The reversal of 159029993 is 399920951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157954624 + 1075369 = 12568^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 159029993 - 2⁶ = 159029929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (159029903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79514996 + 79514997.

It is an arithmetic number, because the mean of its divisors is an integer number (79514997).

Almost surely, 2^159029993 is an apocalyptic number.

It is an amenable number.

159029993 is a deficient number, since it is larger than the sum of its proper divisors (1).

159029993 is an equidigital number, since it uses as much as digits as its factorization.

159029993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196830, while the sum is 47.

The square root of 159029993 is about 12610.7094566483. The cubic root of 159029993 is about 541.7842137424.

The spelling of 159029993 in words is "one hundred fifty-nine million, twenty-nine thousand, nine hundred ninety-three".