224645131 has 2 divisors, whose sum is σ = 224645132. Its totient is φ = 224645130.

The previous prime is 224645119. The next prime is 224645147. The reversal of 224645131 is 131546422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 224645131 - 2²⁵ = 191090699 is a prime.

It is a super-2 number, since 2×224645131² = 100930869764014322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 224645131.

It is not a weakly prime, because it can be changed into another prime (224645231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112322565 + 112322566.

It is an arithmetic number, because the mean of its divisors is an integer number (112322566).

Almost surely, 2^224645131 is an apocalyptic number.

224645131 is a deficient number, since it is larger than the sum of its proper divisors (1).

224645131 is an equidigital number, since it uses as much as digits as its factorization.

224645131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 224645131 is about 14988.1663655032. The cubic root of 224645131 is about 607.9002705696.

The spelling of 224645131 in words is "two hundred twenty-four million, six hundred forty-five thousand, one hundred thirty-one".