1142086225 has 48 divisors (see below), whose sum is σ = 1666143360. Its totient is φ = 760435200.

The previous prime is 1142086213. The next prime is 1142086247. The reversal of 1142086225 is 5226802411.

It is not a de Polignac number, because 1142086225 - 2⁵ = 1142086193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 885381 + ... + 886669.

It is an arithmetic number, because the mean of its divisors is an integer number (34711320).

Almost surely, 2^1142086225 is an apocalyptic number.

It is an amenable number.

1142086225 is a deficient number, since it is larger than the sum of its proper divisors (524057135).

1142086225 is a wasteful number, since it uses less digits than its factorization.

1142086225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1142086225 is about 33794.7662368006. The cubic root of 1142086225 is about 1045.2807789274.

Adding to 1142086225 its reverse (5226802411), we get a palindrome (6368888636).

The spelling of 1142086225 in words is "one billion, one hundred forty-two million, eighty-six thousand, two hundred twenty-five".