274688243 has 2 divisors, whose sum is σ = 274688244. Its totient is φ = 274688242.

The previous prime is 274688237. The next prime is 274688291. The reversal of 274688243 is 342886472.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 274688243 - 2¹⁸ = 274426099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274688194 and 274688203.

It is not a weakly prime, because it can be changed into another prime (274688213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137344121 + 137344122.

It is an arithmetic number, because the mean of its divisors is an integer number (137344122).

Almost surely, 2^274688243 is an apocalyptic number.

274688243 is a deficient number, since it is larger than the sum of its proper divisors (1).

274688243 is an equidigital number, since it uses as much as digits as its factorization.

274688243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 44.

The square root of 274688243 is about 16573.7214589844. The cubic root of 274688243 is about 650.0498920283.

The spelling of 274688243 in words is "two hundred seventy-four million, six hundred eighty-eight thousand, two hundred forty-three".