1145504012 has 12 divisors (see below), whose sum is σ = 2004869160. Its totient is φ = 572684256.

The previous prime is 1145503987. The next prime is 1145504023. The reversal of 1145504012 is 2104055411.

It is a super-2 number, since 2×1145504012² = 2624358883016192288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56039 + ... + 73697.

It is an arithmetic number, because the mean of its divisors is an integer number (167072430).

Almost surely, 2^1145504012 is an apocalyptic number.

It is an amenable number.

1145504012 is a deficient number, since it is larger than the sum of its proper divisors (859365148).

1145504012 is a wasteful number, since it uses less digits than its factorization.

1145504012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33880 (or 33878 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1145504012 is about 33845.2952712781. The cubic root of 1145504012 is about 1046.3224367809.

Adding to 1145504012 its reverse (2104055411), we get a palindrome (3249559423).

The spelling of 1145504012 in words is "one billion, one hundred forty-five million, five hundred four thousand, twelve".