1994014133 has 4 divisors (see below), whose sum is σ = 2111309100. Its totient is φ = 1876719168.

The previous prime is 1994014111. The next prime is 1994014153. The reversal of 1994014133 is 3314104991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3314104991 = 3037 ⋅1091243.

It can be written as a sum of positive squares in 2 ways, for example, as 680531569 + 1313482564 = 26087^2 + 36242^2 .

It is a cyclic number.

It is not a de Polignac number, because 1994014133 - 2¹² = 1994010037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1994014093 and 1994014102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994014153) 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, 58647458 + ... + 58647491.

It is an arithmetic number, because the mean of its divisors is an integer number (527827275).

Almost surely, 2^1994014133 is an apocalyptic number.

It is an amenable number.

1994014133 is a deficient number, since it is larger than the sum of its proper divisors (117294967).

1994014133 is a wasteful number, since it uses less digits than its factorization.

1994014133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117294966.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1994014133 is about 44654.3853725477. The cubic root of 1994014133 is about 1258.6628405072.

The spelling of 1994014133 in words is "one billion, nine hundred ninety-four million, fourteen thousand, one hundred thirty-three".