159223497 has 4 divisors (see below), whose sum is σ = 212298000. Its totient is φ = 106148996.

The previous prime is 159223489. The next prime is 159223507. The reversal of 159223497 is 794322951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159223497 - 2³ = 159223489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159223417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26537247 + ... + 26537252.

It is an arithmetic number, because the mean of its divisors is an integer number (53074500).

Almost surely, 2^159223497 is an apocalyptic number.

It is an amenable number.

159223497 is a deficient number, since it is larger than the sum of its proper divisors (53074503).

159223497 is an equidigital number, since it uses as much as digits as its factorization.

159223497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53074502.

The product of its digits is 136080, while the sum is 42.

The square root of 159223497 is about 12618.3793333375. The cubic root of 159223497 is about 542.0038681568.

The spelling of 159223497 in words is "one hundred fifty-nine million, two hundred twenty-three thousand, four hundred ninety-seven".