159972451 has 2 divisors, whose sum is σ = 159972452. Its totient is φ = 159972450.

The previous prime is 159972413. The next prime is 159972487. The reversal of 159972451 is 154279951.

159972451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159972451 - 2⁹ = 159971939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159972398 and 159972407.

It is not a weakly prime, because it can be changed into another prime (159972401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79986225 + 79986226.

It is an arithmetic number, because the mean of its divisors is an integer number (79986226).

Almost surely, 2^159972451 is an apocalyptic number.

159972451 is a deficient number, since it is larger than the sum of its proper divisors (1).

159972451 is an equidigital number, since it uses as much as digits as its factorization.

159972451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 43.

The square root of 159972451 is about 12648.0216239537. The cubic root of 159972451 is about 542.8523634093.

The spelling of 159972451 in words is "one hundred fifty-nine million, nine hundred seventy-two thousand, four hundred fifty-one".