194708253 has 8 divisors (see below), whose sum is σ = 260266528. Its totient is φ = 129477744.

The previous prime is 194708251. The next prime is 194708287. The reversal of 194708253 is 352807491.

194708253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 194708253 - 2¹ = 194708251 is a prime.

It is a super-2 number, since 2×194708253² = 75822607572624018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194708251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80551 + ... + 82932.

It is an arithmetic number, because the mean of its divisors is an integer number (32533316).

Almost surely, 2^194708253 is an apocalyptic number.

It is an amenable number.

194708253 is a deficient number, since it is larger than the sum of its proper divisors (65558275).

194708253 is a wasteful number, since it uses less digits than its factorization.

194708253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163883.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 194708253 is about 13953.7899152882. The cubic root of 194708253 is about 579.5996573395.

The spelling of 194708253 in words is "one hundred ninety-four million, seven hundred eight thousand, two hundred fifty-three".