224681491 has 2 divisors, whose sum is σ = 224681492. Its totient is φ = 224681490.

The previous prime is 224681467. The next prime is 224681497. The reversal of 224681491 is 194186422.

224681491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224681491 - 2¹³ = 224673299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224681491.

It is not a weakly prime, because it can be changed into another prime (224681497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112340745 + 112340746.

It is an arithmetic number, because the mean of its divisors is an integer number (112340746).

Almost surely, 2^224681491 is an apocalyptic number.

224681491 is a deficient number, since it is larger than the sum of its proper divisors (1).

224681491 is an equidigital number, since it uses as much as digits as its factorization.

224681491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 224681491 is about 14989.3792733388. The cubic root of 224681491 is about 607.9330660893.

The spelling of 224681491 in words is "two hundred twenty-four million, six hundred eighty-one thousand, four hundred ninety-one".