1145234916 has 96 divisors (see below), whose sum is σ = 3399701760. Its totient is φ = 326592000.

The previous prime is 1145234897. The next prime is 1145234917. The reversal of 1145234916 is 6194325411.

It is a happy number.

1145234916 is a `hidden beast` number, since 1 + 145 + 23 + 491 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1145234917) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 528876 + ... + 531036.

It is an arithmetic number, because the mean of its divisors is an integer number (35413560).

Almost surely, 2^1145234916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145234916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1699850880).

1145234916 is an abundant number, since it is smaller than the sum of its proper divisors (2254466844).

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

1145234916 is a wasteful number, since it uses less digits than its factorization.

1145234916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882 (or 2874 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1145234916 is about 33841.3196551198. The cubic root of 1145234916 is about 1046.2404981087.

The spelling of 1145234916 in words is "one billion, one hundred forty-five million, two hundred thirty-four thousand, nine hundred sixteen".