197972254 has 4 divisors (see below), whose sum is σ = 296958384. Its totient is φ = 98986126.

The previous prime is 197972233. The next prime is 197972273. The reversal of 197972254 is 452279791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452279791 = 157 ⋅2880763.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49493062 + ... + 49493065.

It is an arithmetic number, because the mean of its divisors is an integer number (74239596).

Almost surely, 2^197972254 is an apocalyptic number.

197972254 is a deficient number, since it is larger than the sum of its proper divisors (98986130).

197972254 is an equidigital number, since it uses as much as digits as its factorization.

197972254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98986129.

The product of its digits is 317520, while the sum is 46.

The square root of 197972254 is about 14070.2613337493. The cubic root of 197972254 is about 582.8204419836.

The spelling of 197972254 in words is "one hundred ninety-seven million, nine hundred seventy-two thousand, two hundred fifty-four".