225135413 has 4 divisors (see below), whose sum is σ = 226626528. Its totient is φ = 223644300.

The previous prime is 225135409. The next prime is 225135419. The reversal of 225135413 is 314531522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225135413 - 2² = 225135409 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 (225135419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745331 + ... + 745632.

It is an arithmetic number, because the mean of its divisors is an integer number (56656632).

Almost surely, 2^225135413 is an apocalyptic number.

It is an amenable number.

225135413 is a deficient number, since it is larger than the sum of its proper divisors (1491115).

225135413 is a wasteful number, since it uses less digits than its factorization.

225135413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491114.

The product of its digits is 3600, while the sum is 26.

The square root of 225135413 is about 15004.5130877346. The cubic root of 225135413 is about 608.3421912682.

Adding to 225135413 its reverse (314531522), we get a palindrome (539666935).

The spelling of 225135413 in words is "two hundred twenty-five million, one hundred thirty-five thousand, four hundred thirteen".