145838194 has 8 divisors (see below), whose sum is σ = 218808540. Its totient is φ = 72902016.

The previous prime is 145838179. The next prime is 145838207. The reversal of 145838194 is 491838541.

It can be written as a sum of positive squares in 2 ways, for example, as 121286169 + 24552025 = 11013^2 + 4955^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 145838194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12382 + ... + 21094.

Almost surely, 2^145838194 is an apocalyptic number.

145838194 is a deficient number, since it is larger than the sum of its proper divisors (72970346).

145838194 is an equidigital number, since it uses as much as digits as its factorization.

145838194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17084.

The product of its digits is 138240, while the sum is 43.

The square root of 145838194 is about 12076.3485375340. The cubic root of 145838194 is about 526.3691476861.

The spelling of 145838194 in words is "one hundred forty-five million, eight hundred thirty-eight thousand, one hundred ninety-four".