1145263242 has 64 divisors (see below), whose sum is σ = 2538273024. Its totient is φ = 342650880.

The previous prime is 1145263211. The next prime is 1145263253. The reversal of 1145263242 is 2423625411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1221798 + ... + 1222734.

It is an arithmetic number, because the mean of its divisors is an integer number (39660516).

Almost surely, 2^1145263242 is an apocalyptic number.

1145263242 is an abundant number, since it is smaller than the sum of its proper divisors (1393009782).

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

1145263242 is a wasteful number, since it uses less digits than its factorization.

1145263242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503.

The product of its digits is 11520, while the sum is 30.

The square root of 1145263242 is about 33841.7381645801. The cubic root of 1145263242 is about 1046.2491238686.

Adding to 1145263242 its reverse (2423625411), we get a palindrome (3568888653).

The spelling of 1145263242 in words is "one billion, one hundred forty-five million, two hundred sixty-three thousand, two hundred forty-two".