1994121 has 12 divisors (see below), whose sum is σ = 2924272. Its totient is φ = 1309176.

The previous prime is 1994119. The next prime is 1994143. The reversal of 1994121 is 1214991.

It is not a de Polignac number, because 1994121 - 2¹ = 1994119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1051 + ... + 2256.

2^1994121 is an apocalyptic number.

It is an amenable number.

1994121 is a deficient number, since it is larger than the sum of its proper divisors (930151).

1994121 is a wasteful number, since it uses less digits than its factorization.

1994121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380 (or 3377 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 1994121 is about 1412.1334922733. The cubic root of 1994121 is about 125.8685325657.

The spelling of 1994121 in words is "one million, nine hundred ninety-four thousand, one hundred twenty-one".