274985198 has 4 divisors (see below), whose sum is σ = 412477800. Its totient is φ = 137492598.

The previous prime is 274985197. The next prime is 274985209. The reversal of 274985198 is 891589472.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274985197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68746298 + ... + 68746301.

It is an arithmetic number, because the mean of its divisors is an integer number (103119450).

Almost surely, 2^274985198 is an apocalyptic number.

274985198 is a deficient number, since it is larger than the sum of its proper divisors (137492602).

274985198 is a wasteful number, since it uses less digits than its factorization.

274985198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137492601.

The product of its digits is 1451520, while the sum is 53.

The square root of 274985198 is about 16582.6776486791. The cubic root of 274985198 is about 650.2840557287.

The spelling of 274985198 in words is "two hundred seventy-four million, nine hundred eighty-five thousand, one hundred ninety-eight".