1145511452 has 12 divisors (see below), whose sum is σ = 2004986256. Its totient is φ = 572658240.

The previous prime is 1145511449. The next prime is 1145511467. The reversal of 1145511452 is 2541155411.

It is a super-4 number, since 4×1145511452⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

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, 6377 + ... + 48287.

It is an arithmetic number, because the mean of its divisors is an integer number (167082188).

Almost surely, 2^1145511452 is an apocalyptic number.

It is an amenable number.

1145511452 is a deficient number, since it is larger than the sum of its proper divisors (859474804).

1145511452 is a wasteful number, since it uses less digits than its factorization.

1145511452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48748 (or 48746 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The square root of 1145511452 is about 33845.4051829787. The cubic root of 1145511452 is about 1046.3247020493.

Adding to 1145511452 its reverse (2541155411), we get a palindrome (3686666863).

The spelling of 1145511452 in words is "one billion, one hundred forty-five million, five hundred eleven thousand, four hundred fifty-two".