194053613 has 4 divisors (see below), whose sum is σ = 208980828. Its totient is φ = 179126400.

The previous prime is 194053603. The next prime is 194053621. The reversal of 194053613 is 316350491.

194053613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64048009 + 130005604 = 8003^2 + 11402^2 .

It is a cyclic number.

It is not a de Polignac number, because 194053613 - 2⁴ = 194053597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 194053613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194053603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7463588 + ... + 7463613.

It is an arithmetic number, because the mean of its divisors is an integer number (52245207).

Almost surely, 2^194053613 is an apocalyptic number.

194053613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

194053613 is a deficient number, since it is larger than the sum of its proper divisors (14927215).

194053613 is a wasteful number, since it uses less digits than its factorization.

194053613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14927214.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 194053613 is about 13930.3127387722. The cubic root of 194053613 is about 578.9493593620.

The spelling of 194053613 in words is "one hundred ninety-four million, fifty-three thousand, six hundred thirteen".