307221314 has 8 divisors (see below), whose sum is σ = 487939788. Its totient is φ = 144574720.

The previous prime is 307221311. The next prime is 307221353. The reversal of 307221314 is 413122703.

It can be written as a sum of positive squares in 2 ways, for example, as 290123089 + 17098225 = 17033^2 + 4135^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 307221314.

It is not an unprimeable number, because it can be changed into a prime (307221311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4517927 + ... + 4517994.

Almost surely, 2^307221314 is an apocalyptic number.

307221314 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

307221314 is a deficient number, since it is larger than the sum of its proper divisors (180718474).

307221314 is a wasteful number, since it uses less digits than its factorization.

307221314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035940.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 307221314 is about 17527.7298587125. The cubic root of 307221314 is about 674.7617368491.

The spelling of 307221314 in words is "three hundred seven million, two hundred twenty-one thousand, three hundred fourteen".