1145504452 has 24 divisors (see below), whose sum is σ = 2112364800. Its totient is φ = 542035296.

The previous prime is 1145504447. The next prime is 1145504461. The reversal of 1145504452 is 2544055411.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69549 + ... + 84427.

It is an arithmetic number, because the mean of its divisors is an integer number (88015200).

Almost surely, 2^1145504452 is an apocalyptic number.

It is an amenable number.

1145504452 is a deficient number, since it is larger than the sum of its proper divisors (966860348).

1145504452 is a wasteful number, since it uses less digits than its factorization.

1145504452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15915 (or 15913 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 1145504452 is about 33845.3017714424. The cubic root of 1145504452 is about 1046.3225707486.

Adding to 1145504452 its reverse (2544055411), we get a palindrome (3689559863).

The spelling of 1145504452 in words is "one billion, one hundred forty-five million, five hundred four thousand, four hundred fifty-two".