1143248802 has 16 divisors (see below), whose sum is σ = 2289551232. Its totient is φ = 380574000.

The previous prime is 1143248801. The next prime is 1143248857. The reversal of 1143248802 is 2088423411.

It is not an unprimeable number, because it can be changed into a prime (1143248801) 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, 122353 + ... + 131364.

It is an arithmetic number, because the mean of its divisors is an integer number (143096952).

Almost surely, 2^1143248802 is an apocalyptic number.

1143248802 is an abundant number, since it is smaller than the sum of its proper divisors (1146302430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143248802 is a wasteful number, since it uses less digits than its factorization.

1143248802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254473.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1143248802 is about 33811.9624097744. The cubic root of 1143248802 is about 1045.6353368868.

The spelling of 1143248802 in words is "one billion, one hundred forty-three million, two hundred forty-eight thousand, eight hundred two".