1145021452 has 12 divisors (see below), whose sum is σ = 2004590896. Its totient is φ = 572281200.

The previous prime is 1145021447. The next prime is 1145021467. The reversal of 1145021452 is 2541205411.

It is a super-2 number, since 2×1145021452² = 2622148251080376608, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45903 + ... + 66310.

Almost surely, 2^1145021452 is an apocalyptic number.

It is an amenable number.

1145021452 is a deficient number, since it is larger than the sum of its proper divisors (859569444).

1145021452 is a wasteful number, since it uses less digits than its factorization.

1145021452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114768 (or 114766 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1145021452 is about 33838.1656122196. The cubic root of 1145021452 is about 1046.1754900316.

Adding to 1145021452 its reverse (2541205411), we get a palindrome (3686226863).

The spelling of 1145021452 in words is "one billion, one hundred forty-five million, twenty-one thousand, four hundred fifty-two".