225250139 has 2 divisors, whose sum is σ = 225250140. Its totient is φ = 225250138.

The previous prime is 225250133. The next prime is 225250237. The reversal of 225250139 is 931052522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225250139 is a prime.

It is not a weakly prime, because it can be changed into another prime (225250133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112625069 + 112625070.

It is an arithmetic number, because the mean of its divisors is an integer number (112625070).

Almost surely, 2^225250139 is an apocalyptic number.

225250139 is a deficient number, since it is larger than the sum of its proper divisors (1).

225250139 is an equidigital number, since it uses as much as digits as its factorization.

225250139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 225250139 is about 15008.3356505643. The cubic root of 225250139 is about 608.4455080728.

The spelling of 225250139 in words is "two hundred twenty-five million, two hundred fifty thousand, one hundred thirty-nine".