225430139 has 8 divisors (see below), whose sum is σ = 247957680. Its totient is φ = 204935280.

The previous prime is 225430129. The next prime is 225430169. The reversal of 225430139 is 931034522.

It is a de Polignac number, because none of the positive numbers 2^k-225430139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225430129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83354 + ... + 86015.

It is an arithmetic number, because the mean of its divisors is an integer number (30994710).

Almost surely, 2^225430139 is an apocalyptic number.

225430139 is a deficient number, since it is larger than the sum of its proper divisors (22527541).

225430139 is an equidigital number, since it uses as much as digits as its factorization.

225430139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169402 (or 169380 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 225430139 is about 15014.3311206327. The cubic root of 225430139 is about 608.6075368762.

The spelling of 225430139 in words is "two hundred twenty-five million, four hundred thirty thousand, one hundred thirty-nine".