1145212764 has 48 divisors (see below), whose sum is σ = 2865905280. Its totient is φ = 354818880.

The previous prime is 1145212759. The next prime is 1145212801. The reversal of 1145212764 is 4672125411.

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 15 ways as a sum of consecutive naturals, for example, 35302 + ... + 59469.

It is an arithmetic number, because the mean of its divisors is an integer number (59706360).

Almost surely, 2^1145212764 is an apocalyptic number.

It is an amenable number.

1145212764 is an abundant number, since it is smaller than the sum of its proper divisors (1720692516).

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

1145212764 is a wasteful number, since it uses less digits than its factorization.

1145212764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94850 (or 94848 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 1145212764 is about 33840.9923613360. The cubic root of 1145212764 is about 1046.2337523402.

The spelling of 1145212764 in words is "one billion, one hundred forty-five million, two hundred twelve thousand, seven hundred sixty-four".