159472723 has 2 divisors, whose sum is σ = 159472724. Its totient is φ = 159472722.

The previous prime is 159472717. The next prime is 159472741. The reversal of 159472723 is 327274951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159472723 - 2¹³ = 159464531 is a prime.

It is not a weakly prime, because it can be changed into another prime (159472783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79736361 + 79736362.

It is an arithmetic number, because the mean of its divisors is an integer number (79736362).

Almost surely, 2^159472723 is an apocalyptic number.

159472723 is a deficient number, since it is larger than the sum of its proper divisors (1).

159472723 is an equidigital number, since it uses as much as digits as its factorization.

159472723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 159472723 is about 12628.2509873695. The cubic root of 159472723 is about 542.2865128683.

The spelling of 159472723 in words is "one hundred fifty-nine million, four hundred seventy-two thousand, seven hundred twenty-three".