1142811502 has 16 divisors (see below), whose sum is σ = 2074347360. Its totient is φ = 460965888.

The previous prime is 1142811463. The next prime is 1142811539. The reversal of 1142811502 is 2051182411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400627 + ... + 2401102.

It is an arithmetic number, because the mean of its divisors is an integer number (129646710).

Almost surely, 2^1142811502 is an apocalyptic number.

1142811502 is a deficient number, since it is larger than the sum of its proper divisors (931535858).

1142811502 is a wasteful number, since it uses less digits than its factorization.

1142811502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801755.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 1142811502 is about 33805.4951450204. The cubic root of 1142811502 is about 1045.5019991434.

Adding to 1142811502 its reverse (2051182411), we get a palindrome (3193993913).

The spelling of 1142811502 in words is "one billion, one hundred forty-two million, eight hundred eleven thousand, five hundred two".