224513279 has 2 divisors, whose sum is σ = 224513280. Its totient is φ = 224513278.

The previous prime is 224513251. The next prime is 224513347. The reversal of 224513279 is 972315422.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224513279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224513249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112256639 + 112256640.

It is an arithmetic number, because the mean of its divisors is an integer number (112256640).

Almost surely, 2^224513279 is an apocalyptic number.

224513279 is a deficient number, since it is larger than the sum of its proper divisors (1).

224513279 is an equidigital number, since it uses as much as digits as its factorization.

224513279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 224513279 is about 14983.7671831886. The cubic root of 224513279 is about 607.7813147262.

The spelling of 224513279 in words is "two hundred twenty-four million, five hundred thirteen thousand, two hundred seventy-nine".