1145216306 has 16 divisors (see below), whose sum is σ = 1851128664. Its totient is φ = 528228864.

The previous prime is 1145216287. The next prime is 1145216323. The reversal of 1145216306 is 6036125411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 869955025 + 275261281 = 29495^2 + 16591^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31010 + ... + 57026.

Almost surely, 2^1145216306 is an apocalyptic number.

1145216306 is a deficient number, since it is larger than the sum of its proper divisors (705912358).

1145216306 is a wasteful number, since it uses less digits than its factorization.

1145216306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27725.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1145216306 is about 33841.0446942762. The cubic root of 1145216306 is about 1046.2348309625.

The spelling of 1145216306 in words is "one billion, one hundred forty-five million, two hundred sixteen thousand, three hundred six".