1994113 has 4 divisors (see below), whose sum is σ = 2175408. Its totient is φ = 1812820.

The previous prime is 1994101. The next prime is 1994119. The reversal of 1994113 is 3114991.

It is a happy number.

It is the 577-th star 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: 3114991 = 11 ⋅283181.

It is a cyclic number.

It is not a de Polignac number, because 1994113 - 2⁵ = 1994081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90631 + ... + 90652.

It is an arithmetic number, because the mean of its divisors is an integer number (543852).

2^1994113 is an apocalyptic number.

It is an amenable number.

1994113 is a deficient number, since it is larger than the sum of its proper divisors (181295).

1994113 is a wasteful number, since it uses less digits than its factorization.

1994113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181294.

The product of its digits is 972, while the sum is 28.

The square root of 1994113 is about 1412.1306596771. The cubic root of 1994113 is about 125.8683642460.

The spelling of 1994113 in words is "one million, nine hundred ninety-four thousand, one hundred thirteen".