75242159 has 4 divisors (see below), whose sum is σ = 76843104. Its totient is φ = 73641216.

The previous prime is 75242149. The next prime is 75242161. The reversal of 75242159 is 95124257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95124257 = 307 ⋅309851.

It is a cyclic number.

It is not a de Polignac number, because 75242159 - 2¹² = 75238063 is a prime.

It is a super-2 number, since 2×75242159² = 11322764981962562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75242149) 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, 800402 + ... + 800495.

It is an arithmetic number, because the mean of its divisors is an integer number (19210776).

Almost surely, 2^75242159 is an apocalyptic number.

75242159 is a deficient number, since it is larger than the sum of its proper divisors (1600945).

75242159 is a wasteful number, since it uses less digits than its factorization.

75242159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600944.

The product of its digits is 25200, while the sum is 35.

The square root of 75242159 is about 8674.2238269484. The cubic root of 75242159 is about 422.1697223915.

The spelling of 75242159 in words is "seventy-five million, two hundred forty-two thousand, one hundred fifty-nine".