274345247 has 4 divisors (see below), whose sum is σ = 299285736. Its totient is φ = 249404760.

The previous prime is 274345241. The next prime is 274345271. The reversal of 274345247 is 742543472.

It is a happy number.

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

It is not a de Polignac number, because 274345247 - 2⁴ = 274345231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 274345247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274345241) 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, 12470228 + ... + 12470249.

It is an arithmetic number, because the mean of its divisors is an integer number (74821434).

Almost surely, 2^274345247 is an apocalyptic number.

274345247 is a deficient number, since it is larger than the sum of its proper divisors (24940489).

274345247 is a wasteful number, since it uses less digits than its factorization.

274345247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24940488.

The product of its digits is 188160, while the sum is 38.

The square root of 274345247 is about 16563.3706412674. The cubic root of 274345247 is about 649.7792125869.

The spelling of 274345247 in words is "two hundred seventy-four million, three hundred forty-five thousand, two hundred forty-seven".