319795945 has 32 divisors (see below), whose sum is σ = 453353472. Its totient is φ = 212006592.

The previous prime is 319795939. The next prime is 319795951. The reversal of 319795945 is 549597913.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (319795939) and next prime (319795951).

It is not a de Polignac number, because 319795945 - 2¹³ = 319787753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 319795892 and 319795901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153984 + ... + 156046.

It is an arithmetic number, because the mean of its divisors is an integer number (14167296).

Almost surely, 2^319795945 is an apocalyptic number.

319795945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

319795945 is a deficient number, since it is larger than the sum of its proper divisors (133557527).

319795945 is a wasteful number, since it uses less digits than its factorization.

319795945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its digits is 1530900, while the sum is 52.

The square root of 319795945 is about 17882.8393998269. The cubic root of 319795945 is about 683.8449606142.

The spelling of 319795945 in words is "three hundred nineteen million, seven hundred ninety-five thousand, nine hundred forty-five".