97144253 has 4 divisors (see below), whose sum is σ = 99211200. Its totient is φ = 95077308.

The previous prime is 97144247. The next prime is 97144261. The reversal of 97144253 is 35244179.

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.

It is a cyclic number.

It is not a de Polignac number, because 97144253 - 2¹⁰ = 97143229 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 (97744253) 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, 1033403 + ... + 1033496.

It is an arithmetic number, because the mean of its divisors is an integer number (24802800).

Almost surely, 2^97144253 is an apocalyptic number.

It is an amenable number.

97144253 is a deficient number, since it is larger than the sum of its proper divisors (2066947).

97144253 is a wasteful number, since it uses less digits than its factorization.

97144253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066946.

The product of its digits is 30240, while the sum is 35.

The square root of 97144253 is about 9856.1784176221. The cubic root of 97144253 is about 459.6977425195.

The spelling of 97144253 in words is "ninety-seven million, one hundred forty-four thousand, two hundred fifty-three".