75144053 has 4 divisors (see below), whose sum is σ = 75308940. Its totient is φ = 74979168.

The previous prime is 75144049. The next prime is 75144061. The reversal of 75144053 is 35044157.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26604964 + 48539089 = 5158^2 + 6967^2 .

It is a cyclic number.

It is not a de Polignac number, because 75144053 - 2² = 75144049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75144073) 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, 81758 + ... + 82671.

It is an arithmetic number, because the mean of its divisors is an integer number (18827235).

Almost surely, 2^75144053 is an apocalyptic number.

It is an amenable number.

75144053 is a deficient number, since it is larger than the sum of its proper divisors (164887).

75144053 is a wasteful number, since it uses less digits than its factorization.

75144053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164886.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 75144053 is about 8668.5669519246. The cubic root of 75144053 is about 421.9861577634.

The spelling of 75144053 in words is "seventy-five million, one hundred forty-four thousand, fifty-three".