2102194 has 8 divisors (see below), whose sum is σ = 3159468. Its totient is φ = 1049040.

The previous prime is 2102183. The next prime is 2102201. The reversal of 2102194 is 4912012.

It can be written as a sum of positive squares in 2 ways, for example, as 1996569 + 105625 = 1413^2 + 325^2 .

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

It is a super-2 number, since 2×2102194² = 8838439227272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324 + ... + 2440.

2^2102194 is an apocalyptic number.

2102194 is a deficient number, since it is larger than the sum of its proper divisors (1057274).

2102194 is a wasteful number, since it uses less digits than its factorization.

2102194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2102194 is about 1449.8944789191. The cubic root of 2102194 is about 128.1024976544.

It can be divided in two parts, 21021 and 94, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 2102194 in words is "two million, one hundred two thousand, one hundred ninety-four".