202194091 has 8 divisors (see below), whose sum is σ = 221104368. Its totient is φ = 183372000.

The previous prime is 202194089. The next prime is 202194151. The reversal of 202194091 is 190491202.

It is a happy number.

202194091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202194091 - 2¹ = 202194089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202194691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17200 + ... + 26461.

It is an arithmetic number, because the mean of its divisors is an integer number (27638046).

Almost surely, 2^202194091 is an apocalyptic number.

202194091 is a deficient number, since it is larger than the sum of its proper divisors (18910277).

202194091 is a wasteful number, since it uses less digits than its factorization.

202194091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44093.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 202194091 is about 14219.4968617037. The cubic root of 202194091 is about 586.9342951125.

It can be divided in two parts, 20219 and 4091, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 202194091 in words is "two hundred two million, one hundred ninety-four thousand, ninety-one".