314109778 has 4 divisors (see below), whose sum is σ = 471164670. Its totient is φ = 157054888.

The previous prime is 314109773. The next prime is 314109787. The reversal of 314109778 is 877901413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877901413 = 449 ⋅1955237.

It can be written as a sum of positive squares in only one way, i.e., 194797849 + 119311929 = 13957^2 + 10923^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 314109778.

It is not an unprimeable number, because it can be changed into a prime (314109773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78527443 + ... + 78527446.

Almost surely, 2^314109778 is an apocalyptic number.

314109778 is a deficient number, since it is larger than the sum of its proper divisors (157054892).

314109778 is a wasteful number, since it uses less digits than its factorization.

314109778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157054891.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 314109778 is about 17723.1424414521. The cubic root of 314109778 is about 679.7676383138.

The spelling of 314109778 in words is "three hundred fourteen million, one hundred nine thousand, seven hundred seventy-eight".