194031000 has 96 divisors (see below), whose sum is σ = 655855200. Its totient is φ = 51739200.

The previous prime is 194030927. The next prime is 194031017. The reversal of 194031000 is 130491.

It is a super-2 number, since 2×194031000² = 75296057922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1780 + ... + 19779.

It is an arithmetic number, because the mean of its divisors is an integer number (6831825).

Almost surely, 2^194031000 is an apocalyptic number.

194031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327927600).

194031000 is an abundant number, since it is smaller than the sum of its proper divisors (461824200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194031000 is a wasteful number, since it uses less digits than its factorization.

194031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21586 (or 21569 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 194031000 is about 13929.5010678775. The cubic root of 194031000 is about 578.9268702326.

Adding to 194031000 its reverse (130491), we get a palindrome (194161491).

The spelling of 194031000 in words is "one hundred ninety-four million, thirty-one thousand".