159724541 has 2 divisors, whose sum is σ = 159724542. Its totient is φ = 159724540.

The previous prime is 159724459. The next prime is 159724553. The reversal of 159724541 is 145427951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149548441 + 10176100 = 12229^2 + 3190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159724541 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 159724495 and 159724504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159724441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79862270 + 79862271.

It is an arithmetic number, because the mean of its divisors is an integer number (79862271).

Almost surely, 2^159724541 is an apocalyptic number.

It is an amenable number.

159724541 is a deficient number, since it is larger than the sum of its proper divisors (1).

159724541 is an equidigital number, since it uses as much as digits as its factorization.

159724541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 38.

The square root of 159724541 is about 12638.2174771603. The cubic root of 159724541 is about 542.5717982089.

The spelling of 159724541 in words is "one hundred fifty-nine million, seven hundred twenty-four thousand, five hundred forty-one".