1142345253 has 8 divisors (see below), whose sum is σ = 1740716608. Its totient is φ = 652768704.

The previous prime is 1142345251. The next prime is 1142345263. The reversal of 1142345253 is 3525432411.

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

It is not a de Polignac number, because 1142345253 - 2¹ = 1142345251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142345253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142345251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27198676 + ... + 27198717.

It is an arithmetic number, because the mean of its divisors is an integer number (217589576).

Almost surely, 2^1142345253 is an apocalyptic number.

It is an amenable number.

1142345253 is a deficient number, since it is larger than the sum of its proper divisors (598371355).

1142345253 is an equidigital number, since it uses as much as digits as its factorization.

1142345253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54397403.

The product of its digits is 14400, while the sum is 30.

The square root of 1142345253 is about 33798.5983880989. The cubic root of 1142345253 is about 1045.3597970484.

Adding to 1142345253 its reverse (3525432411), we get a palindrome (4667777664).

The spelling of 1142345253 in words is "one billion, one hundred forty-two million, three hundred forty-five thousand, two hundred fifty-three".