75142618 has 8 divisors (see below), whose sum is σ = 119344212. Its totient is φ = 35361216.

The previous prime is 75142607. The next prime is 75142619. The reversal of 75142618 is 81624157.

It can be written as a sum of positive squares in 2 ways, for example, as 71351809 + 3790809 = 8447^2 + 1947^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 2210077 = 75142618 / (7 + 5 + 1 + 4 + 2 + 6 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (75142619) 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, 1105005 + ... + 1105072.

Almost surely, 2^75142618 is an apocalyptic number.

75142618 is a deficient number, since it is larger than the sum of its proper divisors (44201594).

75142618 is a wasteful number, since it uses less digits than its factorization.

75142618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210096.

The product of its digits is 13440, while the sum is 34.

The square root of 75142618 is about 8668.4841812165. The cubic root of 75142618 is about 421.9834715717.

The spelling of 75142618 in words is "seventy-five million, one hundred forty-two thousand, six hundred eighteen".