225142135 has 8 divisors (see below), whose sum is σ = 286063056. Its totient is φ = 169518720.

The previous prime is 225142133. The next prime is 225142157. The reversal of 225142135 is 531241522.

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

It is not a de Polignac number, because 225142135 - 2¹ = 225142133 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 (225142133) 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, 1324281 + ... + 1324450.

It is an arithmetic number, because the mean of its divisors is an integer number (35757882).

Almost surely, 2^225142135 is an apocalyptic number.

225142135 is a deficient number, since it is larger than the sum of its proper divisors (60920921).

225142135 is a wasteful number, since it uses less digits than its factorization.

225142135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648753.

The product of its digits is 2400, while the sum is 25.

The square root of 225142135 is about 15004.7370853341. The cubic root of 225142135 is about 608.3482457511.

Adding to 225142135 its reverse (531241522), we get a palindrome (756383657).

It can be divided in two parts, 22514 and 2135, that added together give a square (24649 = 157²).

The spelling of 225142135 in words is "two hundred twenty-five million, one hundred forty-two thousand, one hundred thirty-five".