1145232252 has 72 divisors (see below), whose sum is σ = 2923227216. Its totient is φ = 378031104.

The previous prime is 1145232229. The next prime is 1145232271. The reversal of 1145232252 is 2522325411.

1145232252 is a `hidden beast` number, since 114 + 523 + 2 + 25 + 2 = 666.

It is a super-2 number, since 2×1145232252² = 2623113822041983008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2884518 + ... + 2884914.

It is an arithmetic number, because the mean of its divisors is an integer number (40600378).

Almost surely, 2^1145232252 is an apocalyptic number.

1145232252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145232252 is an abundant number, since it is smaller than the sum of its proper divisors (1777994964).

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

1145232252 is a wasteful number, since it uses less digits than its factorization.

1145232252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 982 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1145232252 is about 33841.2802949297. The cubic root of 1145232252 is about 1046.2396868671.

Adding to 1145232252 its reverse (2522325411), we get a palindrome (3667557663).

The spelling of 1145232252 in words is "one billion, one hundred forty-five million, two hundred thirty-two thousand, two hundred fifty-two".