1142345225 has 12 divisors (see below), whose sum is σ = 1618866624. Its totient is φ = 783322320.

The previous prime is 1142345221. The next prime is 1142345233. The reversal of 1142345225 is 5225432411.

1142345225 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1142345225 - 2² = 1142345221 is a prime.

It is a super-2 number, since 2×1142345225² = 2609905226160601250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142345221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3263669 + ... + 3264018.

It is an arithmetic number, because the mean of its divisors is an integer number (134905552).

Almost surely, 2^1142345225 is an apocalyptic number.

It is an amenable number.

1142345225 is a deficient number, since it is larger than the sum of its proper divisors (476521399).

1142345225 is an equidigital number, since it uses as much as digits as its factorization.

1142345225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527704 (or 6527699 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 1142345225 is about 33798.5979738805. The cubic root of 1142345225 is about 1045.3597885075.

Adding to 1142345225 its reverse (5225432411), we get a palindrome (6367777636).

The spelling of 1142345225 in words is "one billion, one hundred forty-two million, three hundred forty-five thousand, two hundred twenty-five".