196578253 has 4 divisors (see below), whose sum is σ = 196616448. Its totient is φ = 196540060.

The previous prime is 196578229. The next prime is 196578271. The reversal of 196578253 is 352875691.

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: 352875691 = 7 ⋅50410813.

It is a cyclic number.

It is not a de Polignac number, because 196578253 - 2¹³ = 196570061 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 (196578353) 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, 9901 + ... + 22162.

It is an arithmetic number, because the mean of its divisors is an integer number (49154112).

Almost surely, 2^196578253 is an apocalyptic number.

It is an amenable number.

196578253 is a deficient number, since it is larger than the sum of its proper divisors (38195).

196578253 is an equidigital number, since it uses as much as digits as its factorization.

196578253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38194.

The product of its digits is 453600, while the sum is 46.

The square root of 196578253 is about 14020.6366831182. The cubic root of 196578253 is about 581.4492621170.

The spelling of 196578253 in words is "one hundred ninety-six million, five hundred seventy-eight thousand, two hundred fifty-three".