194180143053 has 8 divisors (see below), whose sum is σ = 278822769568. Its totient is φ = 119495472624.

The previous prime is 194180143039. The next prime is 194180143057. The reversal of 194180143053 is 350341081491.

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

It is not a de Polignac number, because 194180143053 - 2¹⁰ = 194180142029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 4978978027 = 194180143053 / (1 + 9 + 4 + 1 + 8 + 0 + 1 + 4 + 3 + 0 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194180143057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2489488975 + ... + 2489489052.

It is an arithmetic number, because the mean of its divisors is an integer number (34852846196).

Almost surely, 2^194180143053 is an apocalyptic number.

194180143053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

194180143053 is a deficient number, since it is larger than the sum of its proper divisors (84642626515).

194180143053 is a wasteful number, since it uses less digits than its factorization.

194180143053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978978043.

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

The spelling of 194180143053 in words is "one hundred ninety-four billion, one hundred eighty million, one hundred forty-three thousand, fifty-three".