194944215 has 8 divisors (see below), whose sum is σ = 311910768. Its totient is φ = 103970240.

The previous prime is 194944187. The next prime is 194944247. The reversal of 194944215 is 512449491.

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

It is not a de Polignac number, because 194944215 - 2¹⁵ = 194911447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6498126 + ... + 6498155.

It is an arithmetic number, because the mean of its divisors is an integer number (38988846).

Almost surely, 2^194944215 is an apocalyptic number.

194944215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

194944215 is a deficient number, since it is larger than the sum of its proper divisors (116966553).

194944215 is a wasteful number, since it uses less digits than its factorization.

194944215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12996289.

The product of its digits is 51840, while the sum is 39.

The square root of 194944215 is about 13962.2424774819. The cubic root of 194944215 is about 579.8336968707.

It can be divided in two parts, 1949 and 44215, that added together give a palindrome (46164).

The spelling of 194944215 in words is "one hundred ninety-four million, nine hundred forty-four thousand, two hundred fifteen".