225141321 has 4 divisors (see below), whose sum is σ = 300188432. Its totient is φ = 150094212.

The previous prime is 225141311. The next prime is 225141331. The reversal of 225141321 is 123141522.

225141321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (225141311) and next prime (225141331).

It is not a de Polignac number, because 225141321 - 2⁵ = 225141289 is a prime.

It is a super-2 number, since 2×225141321² = 101377228843250082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225141311) 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, 37523551 + ... + 37523556.

It is an arithmetic number, because the mean of its divisors is an integer number (75047108).

Almost surely, 2^225141321 is an apocalyptic number.

It is an amenable number.

225141321 is a deficient number, since it is larger than the sum of its proper divisors (75047111).

225141321 is an equidigital number, since it uses as much as digits as its factorization.

225141321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75047110.

The product of its digits is 480, while the sum is 21.

The square root of 225141321 is about 15004.7099605424. The cubic root of 225141321 is about 608.3475125904.

Adding to 225141321 its reverse (123141522), we get a palindrome (348282843).

The spelling of 225141321 in words is "two hundred twenty-five million, one hundred forty-one thousand, three hundred twenty-one".