194823253 has 4 divisors (see below), whose sum is σ = 195196288. Its totient is φ = 194450220.

The previous prime is 194823229. The next prime is 194823269. The reversal of 194823253 is 352328491.

194823253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 194823253 - 2⁹ = 194822741 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 (194823053) 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, 185733 + ... + 186778.

It is an arithmetic number, because the mean of its divisors is an integer number (48799072).

Almost surely, 2^194823253 is an apocalyptic number.

It is an amenable number.

194823253 is a deficient number, since it is larger than the sum of its proper divisors (373035).

194823253 is an equidigital number, since it uses as much as digits as its factorization.

194823253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373034.

The product of its digits is 51840, while the sum is 37.

The square root of 194823253 is about 13957.9100512935. The cubic root of 194823253 is about 579.7137439987.

The spelling of 194823253 in words is "one hundred ninety-four million, eight hundred twenty-three thousand, two hundred fifty-three".