159743401 has 2 divisors, whose sum is σ = 159743402. Its totient is φ = 159743400.

The previous prime is 159743399. The next prime is 159743411. The reversal of 159743401 is 104347951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129504400 + 30239001 = 11380^2 + 5499^2 .

It is an emirp because it is prime and its reverse (104347951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159743401 - 2¹ = 159743399 is a prime.

Together with 159743399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (159743411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79871700 + 79871701.

It is an arithmetic number, because the mean of its divisors is an integer number (79871701).

Almost surely, 2^159743401 is an apocalyptic number.

It is an amenable number.

159743401 is a deficient number, since it is larger than the sum of its proper divisors (1).

159743401 is an equidigital number, since it uses as much as digits as its factorization.

159743401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 159743401 is about 12638.9636046632. The cubic root of 159743401 is about 542.5931526844.

The spelling of 159743401 in words is "one hundred fifty-nine million, seven hundred forty-three thousand, four hundred one".