1145304312 has 32 divisors (see below), whose sum is σ = 2929850880. Its totient is φ = 372889440.

The previous prime is 1145304299. The next prime is 1145304313. The reversal of 1145304312 is 2134035411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145304313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553864 + ... + 555927.

It is an arithmetic number, because the mean of its divisors is an integer number (91557840).

Almost surely, 2^1145304312 is an apocalyptic number.

1145304312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145304312 is an abundant number, since it is smaller than the sum of its proper divisors (1784546568).

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

1145304312 is a wasteful number, since it uses less digits than its factorization.

1145304312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109843 (or 1109839 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1145304312 is about 33842.3449542138. The cubic root of 1145304312 is about 1046.2616301455.

Adding to 1145304312 its reverse (2134035411), we get a palindrome (3279339723).

The spelling of 1145304312 in words is "one billion, one hundred forty-five million, three hundred four thousand, three hundred twelve".