225242141 has 4 divisors (see below), whose sum is σ = 228604032. Its totient is φ = 221880252.

The previous prime is 225242107. The next prime is 225242153. The reversal of 225242141 is 141242522.

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, and also an emirpimes, since its reverse is a distinct semiprime: 141242522 = 2 ⋅70621261.

It is a cyclic number.

It is not a de Polignac number, because 225242141 - 2⁶ = 225242077 is a prime.

It is a super-4 number, since 4×225242141⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225242341) 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, 1680845 + ... + 1680978.

It is an arithmetic number, because the mean of its divisors is an integer number (57151008).

Almost surely, 2^225242141 is an apocalyptic number.

It is an amenable number.

225242141 is a deficient number, since it is larger than the sum of its proper divisors (3361891).

225242141 is an equidigital number, since it uses as much as digits as its factorization.

225242141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361890.

The product of its digits is 1280, while the sum is 23.

The square root of 225242141 is about 15008.0691962691. The cubic root of 225242141 is about 608.4383065904.

Adding to 225242141 its reverse (141242522), we get a palindrome (366484663).

The spelling of 225242141 in words is "two hundred twenty-five million, two hundred forty-two thousand, one hundred forty-one".