194053529157 has 4 divisors (see below), whose sum is σ = 258738038880. Its totient is φ = 129369019436.

The previous prime is 194053529147. The next prime is 194053529183. The reversal of 194053529157 is 751925350491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 194053529157 - 2²⁴ = 194036751941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194053529147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32342254857 + ... + 32342254862.

It is an arithmetic number, because the mean of its divisors is an integer number (64684509720).

Almost surely, 2^194053529157 is an apocalyptic number.

It is an amenable number.

194053529157 is a deficient number, since it is larger than the sum of its proper divisors (64684509723).

194053529157 is an equidigital number, since it uses as much as digits as its factorization.

194053529157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64684509722.

The product of its (nonzero) digits is 1701000, while the sum is 51.

The spelling of 194053529157 in words is "one hundred ninety-four billion, fifty-three million, five hundred twenty-nine thousand, one hundred fifty-seven".