52144145 has 4 divisors (see below), whose sum is σ = 62572980. Its totient is φ = 41715312.

The previous prime is 52144093. The next prime is 52144153. The reversal of 52144145 is 54144125.

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 5303809 + 46840336 = 2303^2 + 6844^2 .

It is a cyclic number.

It is not a de Polignac number, because 52144145 - 2¹⁸ = 51882001 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5214410 + ... + 5214419.

It is an arithmetic number, because the mean of its divisors is an integer number (15643245).

Almost surely, 2^52144145 is an apocalyptic number.

It is an amenable number.

52144145 is a deficient number, since it is larger than the sum of its proper divisors (10428835).

52144145 is a wasteful number, since it uses less digits than its factorization.

52144145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428834.

The product of its digits is 3200, while the sum is 26.

The square root of 52144145 is about 7221.0902916388. The cubic root of 52144145 is about 373.5956839178.

The spelling of 52144145 in words is "fifty-two million, one hundred forty-four thousand, one hundred forty-five".