159242457 has 8 divisors (see below), whose sum is σ = 231625440. Its totient is φ = 96510560.

The previous prime is 159242423. The next prime is 159242467. The reversal of 159242457 is 754242951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159242457 - 2⁷ = 159242329 is a prime.

It is a super-2 number, since 2×159242457² = 50716320222793698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (159242467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412732 + ... + 2412797.

It is an arithmetic number, because the mean of its divisors is an integer number (28953180).

Almost surely, 2^159242457 is an apocalyptic number.

It is an amenable number.

159242457 is a deficient number, since it is larger than the sum of its proper divisors (72382983).

159242457 is a wasteful number, since it uses less digits than its factorization.

159242457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825543.

The product of its digits is 100800, while the sum is 39.

The square root of 159242457 is about 12619.1305960435. The cubic root of 159242457 is about 542.0253808642.

It can be divided in two parts, 15924 and 2457, that added together give a palindrome (18381).

The spelling of 159242457 in words is "one hundred fifty-nine million, two hundred forty-two thousand, four hundred fifty-seven".