159768541 has 2 divisors, whose sum is σ = 159768542. Its totient is φ = 159768540.

The previous prime is 159768529. The next prime is 159768547. The reversal of 159768541 is 145867951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159643225 + 125316 = 12635^2 + 354^2 .

It is a cyclic number.

It is not a de Polignac number, because 159768541 - 2¹⁵ = 159735773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159768491 and 159768500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159768547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79884270 + 79884271.

It is an arithmetic number, because the mean of its divisors is an integer number (79884271).

Almost surely, 2^159768541 is an apocalyptic number.

It is an amenable number.

159768541 is a deficient number, since it is larger than the sum of its proper divisors (1).

159768541 is an equidigital number, since it uses as much as digits as its factorization.

159768541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 46.

The square root of 159768541 is about 12639.9581091078. The cubic root of 159768541 is about 542.6216151566.

The spelling of 159768541 in words is "one hundred fifty-nine million, seven hundred sixty-eight thousand, five hundred forty-one".