225120613 has 8 divisors (see below), whose sum is σ = 238569408. Its totient is φ = 211694784.

The previous prime is 225120593. The next prime is 225120629. The reversal of 225120613 is 316021522.

225120613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225120613 - 2²¹ = 223023461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225220613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17070 + ... + 27232.

It is an arithmetic number, because the mean of its divisors is an integer number (29821176).

Almost surely, 2^225120613 is an apocalyptic number.

It is an amenable number.

225120613 is a deficient number, since it is larger than the sum of its proper divisors (13448795).

225120613 is a wasteful number, since it uses less digits than its factorization.

225120613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11483.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 225120613 is about 15004.0198946816. The cubic root of 225120613 is about 608.3288605330.

Subtracting 225120613 from its reverse (316021522), we obtain a palindrome (90900909).

The spelling of 225120613 in words is "two hundred twenty-five million, one hundred twenty thousand, six hundred thirteen".