1145247852 has 24 divisors (see below), whose sum is σ = 3053994496. Its totient is φ = 327213648.

The previous prime is 1145247799. The next prime is 1145247869. The reversal of 1145247852 is 2587425411.

It is a super-2 number, since 2×1145247852² = 2623185285021227808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145247852.

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 7 ways as a sum of consecutive naturals, for example, 6816868 + ... + 6817035.

Almost surely, 2^1145247852 is an apocalyptic number.

1145247852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145247852 is an abundant number, since it is smaller than the sum of its proper divisors (1908746644).

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

1145247852 is a wasteful number, since it uses less digits than its factorization.

1145247852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13633917 (or 13633915 counting only the distinct ones).

The product of its digits is 89600, while the sum is 39.

The square root of 1145247852 is about 33841.5107818785. The cubic root of 1145247852 is about 1046.2444373635.

The spelling of 1145247852 in words is "one billion, one hundred forty-five million, two hundred forty-seven thousand, eight hundred fifty-two".