194090 has 16 divisors (see below), whose sum is σ = 376488. Its totient is φ = 71616.

The previous prime is 194087. The next prime is 194093. The reversal of 194090 is 90491.

194090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (194087) and next prime (194093).

It can be written as a sum of positive squares in 4 ways, for example, as 157609 + 36481 = 397^2 + 191^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194093) 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, 617 + ... + 876.

2¹⁹⁴⁰⁹⁰ is an apocalyptic number.

194090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194090 is a deficient number, since it is larger than the sum of its proper divisors (182398).

194090 is a wasteful number, since it uses less digits than its factorization.

194090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 194090 is about 440.5564663014. The cubic root of 194090 is about 57.8985543372.

The spelling of 194090 in words is "one hundred ninety-four thousand, ninety".