1142503253 has 8 divisors (see below), whose sum is σ = 1170813336. Its totient is φ = 1114214400.

The previous prime is 1142503237. The next prime is 1142503261. The reversal of 1142503253 is 3523052411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4318084 + 1138185169 = 2078^2 + 33737^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1142503253 - 2⁴ = 1142503237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142503753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201923 + ... + 207503.

It is an arithmetic number, because the mean of its divisors is an integer number (146351667).

Almost surely, 2^1142503253 is an apocalyptic number.

It is an amenable number.

1142503253 is a deficient number, since it is larger than the sum of its proper divisors (28310083).

1142503253 is an equidigital number, since it uses as much as digits as its factorization.

1142503253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1142503253 is about 33800.9356823151. The cubic root of 1142503253 is about 1045.4079900774.

Adding to 1142503253 its reverse (3523052411), we get a palindrome (4665555664).

The spelling of 1142503253 in words is "one billion, one hundred forty-two million, five hundred three thousand, two hundred fifty-three".