274401563 has 2 divisors, whose sum is σ = 274401564. Its totient is φ = 274401562.

The previous prime is 274401559. The next prime is 274401571. The reversal of 274401563 is 365104472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 274401563 - 2² = 274401559 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274401503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137200781 + 137200782.

It is an arithmetic number, because the mean of its divisors is an integer number (137200782).

Almost surely, 2^274401563 is an apocalyptic number.

274401563 is a deficient number, since it is larger than the sum of its proper divisors (1).

274401563 is an equidigital number, since it uses as much as digits as its factorization.

274401563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 274401563 is about 16565.0705703296. The cubic root of 274401563 is about 649.8236705135.

The spelling of 274401563 in words is "two hundred seventy-four million, four hundred one thousand, five hundred sixty-three".