1922013 has 6 divisors (see below), whose sum is σ = 2776254. Its totient is φ = 1281336.

The previous prime is 1921981. The next prime is 1922027. The reversal of 1922013 is 3102291.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1790244 + 131769 = 1338^2 + 363^2 .

It is not a de Polignac number, because 1922013 - 2⁵ = 1921981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106770 + ... + 106787.

It is an arithmetic number, because the mean of its divisors is an integer number (462709).

2^1922013 is an apocalyptic number.

It is an amenable number.

1922013 is a deficient number, since it is larger than the sum of its proper divisors (854241).

1922013 is a wasteful number, since it uses less digits than its factorization.

1922013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213563 (or 213560 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1922013 is about 1386.3668345716. The cubic root of 1922013 is about 124.3327215879.

The spelling of 1922013 in words is "one million, nine hundred twenty-two thousand, thirteen".