101994079 has 4 divisors (see below), whose sum is σ = 111266280. Its totient is φ = 92721880.

The previous prime is 101994059. The next prime is 101994091. The reversal of 101994079 is 970499101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101994079 - 2⁵ = 101994047 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101994059) 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, 4636084 + ... + 4636105.

It is an arithmetic number, because the mean of its divisors is an integer number (27816570).

Almost surely, 2^101994079 is an apocalyptic number.

101994079 is a deficient number, since it is larger than the sum of its proper divisors (9272201).

101994079 is an equidigital number, since it uses as much as digits as its factorization.

101994079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272200.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 101994079 is about 10099.2118009278. The cubic root of 101994079 is about 467.2238318572.

The spelling of 101994079 in words is "one hundred one million, nine hundred ninety-four thousand, seventy-nine".