1922313 has 4 divisors (see below), whose sum is σ = 2563088. Its totient is φ = 1281540.

The previous prime is 1922273. The next prime is 1922329. The reversal of 1922313 is 3132291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3132291 = 3 ⋅1044097.

It is a de Polignac number, because none of the positive numbers 2^k-1922313 is a prime.

It is a D-number.

It is a Duffinian number.

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 1922313.

It is not an unprimeable number, because it can be changed into a prime (1922353) 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, 320383 + ... + 320388.

It is an arithmetic number, because the mean of its divisors is an integer number (640772).

2^1922313 is an apocalyptic number.

It is an amenable number.

1922313 is a deficient number, since it is larger than the sum of its proper divisors (640775).

1922313 is an equidigital number, since it uses as much as digits as its factorization.

1922313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640774.

The product of its digits is 324, while the sum is 21.

The square root of 1922313 is about 1386.4750268216. The cubic root of 1922313 is about 124.3391901317.

The spelling of 1922313 in words is "one million, nine hundred twenty-two thousand, three hundred thirteen".