1219973 has 4 divisors (see below), whose sum is σ = 1222188. Its totient is φ = 1217760.

The previous prime is 1219963. The next prime is 1219991. The reversal of 1219973 is 3799121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1151329 + 68644 = 1073^2 + 262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1219973 - 2⁴ = 1219957 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 (1219913) 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, 443 + ... + 1623.

It is an arithmetic number, because the mean of its divisors is an integer number (305547).

2^1219973 is an apocalyptic number.

It is an amenable number.

1219973 is a deficient number, since it is larger than the sum of its proper divisors (2215).

1219973 is a wasteful number, since it uses less digits than its factorization.

1219973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214.

The product of its digits is 3402, while the sum is 32.

The square root of 1219973 is about 1104.5238793254. The cubic root of 1219973 is about 106.8521847494.

The spelling of 1219973 in words is "one million, two hundred nineteen thousand, nine hundred seventy-three".