1145212616 has 16 divisors (see below), whose sum is σ = 2273584140. Its totient is φ = 538923520.

The previous prime is 1145212613. The next prime is 1145212637. The reversal of 1145212616 is 6162125411.

It can be written as a sum of positive squares in 2 ways, for example, as 995150116 + 150062500 = 31546^2 + 12250^2 .

It is not an unprimeable number, because it can be changed into a prime (1145212613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210205 + ... + 4210476.

Almost surely, 2^1145212616 is an apocalyptic number.

It is an amenable number.

1145212616 is a deficient number, since it is larger than the sum of its proper divisors (1128371524).

1145212616 is a wasteful number, since it uses less digits than its factorization.

1145212616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420704 (or 8420700 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 1145212616 is about 33840.9901746388. The cubic root of 1145212616 is about 1046.2337072707.

The spelling of 1145212616 in words is "one billion, one hundred forty-five million, two hundred twelve thousand, six hundred sixteen".