75147253 has 4 divisors (see below), whose sum is σ = 75433248. Its totient is φ = 74861260.

The previous prime is 75147251. The next prime is 75147257. The reversal of 75147253 is 35274157.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35274157 = 23 ⋅1533659.

It is a cyclic number.

It is not a de Polignac number, because 75147253 - 2¹ = 75147251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75147251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142603 + ... + 143128.

It is an arithmetic number, because the mean of its divisors is an integer number (18858312).

Almost surely, 2^75147253 is an apocalyptic number.

It is an amenable number.

75147253 is a deficient number, since it is larger than the sum of its proper divisors (285995).

75147253 is a wasteful number, since it uses less digits than its factorization.

75147253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285994.

The product of its digits is 29400, while the sum is 34.

The square root of 75147253 is about 8668.7515248737. The cubic root of 75147253 is about 421.9921477541.

The spelling of 75147253 in words is "seventy-five million, one hundred forty-seven thousand, two hundred fifty-three".