225144739 has 2 divisors, whose sum is σ = 225144740. Its totient is φ = 225144738.

The previous prime is 225144727. The next prime is 225144749. The reversal of 225144739 is 937441522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225144739 - 2²³ = 216756131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225144698 and 225144707.

It is not a weakly prime, because it can be changed into another prime (225144709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112572369 + 112572370.

It is an arithmetic number, because the mean of its divisors is an integer number (112572370).

Almost surely, 2^225144739 is an apocalyptic number.

225144739 is a deficient number, since it is larger than the sum of its proper divisors (1).

225144739 is an equidigital number, since it uses as much as digits as its factorization.

225144739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 225144739 is about 15004.8238576799. The cubic root of 225144739 is about 608.3505911328.

The spelling of 225144739 in words is "two hundred twenty-five million, one hundred forty-four thousand, seven hundred thirty-nine".