306763145 has 16 divisors (see below), whose sum is σ = 397126800. Its totient is φ = 226136064.

The previous prime is 306763141. The next prime is 306763157. The reversal of 306763145 is 541367603.

It can be written as a sum of positive squares in 8 ways, for example, as 176438089 + 130325056 = 13283^2 + 11416^2 .

It is a cyclic number.

It is not a de Polignac number, because 306763145 - 2² = 306763141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (306763141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36281 + ... + 43929.

It is an arithmetic number, because the mean of its divisors is an integer number (24820425).

Almost surely, 2^306763145 is an apocalyptic number.

It is an amenable number.

306763145 is a deficient number, since it is larger than the sum of its proper divisors (90363655).

306763145 is a wasteful number, since it uses less digits than its factorization.

306763145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8284.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 306763145 is about 17514.6551493314. The cubic root of 306763145 is about 674.4261386904.

The spelling of 306763145 in words is "three hundred six million, seven hundred sixty-three thousand, one hundred forty-five".