194924413 has 4 divisors (see below), whose sum is σ = 194956060. Its totient is φ = 194892768.

The previous prime is 194924393. The next prime is 194924417. The reversal of 194924413 is 314429491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314429491 = 479 ⋅656429.

It can be written as a sum of positive squares in 2 ways, for example, as 51451929 + 143472484 = 7173^2 + 11978^2 .

It is a cyclic number.

It is not a de Polignac number, because 194924413 - 2⁹ = 194923901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194924417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3258 + ... + 20011.

It is an arithmetic number, because the mean of its divisors is an integer number (48739015).

Almost surely, 2^194924413 is an apocalyptic number.

It is an amenable number.

194924413 is a deficient number, since it is larger than the sum of its proper divisors (31647).

194924413 is an equidigital number, since it uses as much as digits as its factorization.

194924413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31646.

The product of its digits is 31104, while the sum is 37.

The square root of 194924413 is about 13961.5333326967. The cubic root of 194924413 is about 579.8140634666.

It can be divided in two parts, 1949 and 24413, that added together give a palindrome (26362).

The spelling of 194924413 in words is "one hundred ninety-four million, nine hundred twenty-four thousand, four hundred thirteen".