75144017 has 8 divisors (see below), whose sum is σ = 83715240. Its totient is φ = 66971520.

The previous prime is 75144007. The next prime is 75144049. The reversal of 75144017 is 71044157.

It can be written as a sum of positive squares in 4 ways, for example, as 18653761 + 56490256 = 4319^2 + 7516^2 .

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 75144017 - 2⁶ = 75143953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75144007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99284 + ... + 100037.

It is an arithmetic number, because the mean of its divisors is an integer number (10464405).

Almost surely, 2^75144017 is an apocalyptic number.

It is an amenable number.

75144017 is a deficient number, since it is larger than the sum of its proper divisors (8571223).

75144017 is a wasteful number, since it uses less digits than its factorization.

75144017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199363.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 75144017 is about 8668.5648754566. The cubic root of 75144017 is about 421.9860903751.

The spelling of 75144017 in words is "seventy-five million, one hundred forty-four thousand, seventeen".