314305391 has 4 divisors (see below), whose sum is σ = 330847800. Its totient is φ = 297762984.

The previous prime is 314305379. The next prime is 314305421. The reversal of 314305391 is 193503413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193503413 = 4363 ⋅44351.

It is not a de Polignac number, because 314305391 - 2¹⁴ = 314289007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314305301) 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, 8271176 + ... + 8271213.

It is an arithmetic number, because the mean of its divisors is an integer number (82711950).

Almost surely, 2^314305391 is an apocalyptic number.

314305391 is a deficient number, since it is larger than the sum of its proper divisors (16542409).

314305391 is a wasteful number, since it uses less digits than its factorization.

314305391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16542408.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 314305391 is about 17728.6601580605. The cubic root of 314305391 is about 679.9087182834.

The spelling of 314305391 in words is "three hundred fourteen million, three hundred five thousand, three hundred ninety-one".