194043157 has 16 divisors (see below), whose sum is σ = 252444672. Its totient is φ = 144627120.

The previous prime is 194043139. The next prime is 194043191. The reversal of 194043157 is 751340491.

194043157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194043157 - 2¹⁵ = 194010389 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 (194043137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53013 + ... + 56554.

It is an arithmetic number, because the mean of its divisors is an integer number (15777792).

Almost surely, 2^194043157 is an apocalyptic number.

It is an amenable number.

194043157 is a deficient number, since it is larger than the sum of its proper divisors (58401515).

194043157 is a wasteful number, since it uses less digits than its factorization.

194043157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109608.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 194043157 is about 13929.9374370454. The cubic root of 194043157 is about 578.9389608556.

The spelling of 194043157 in words is "one hundred ninety-four million, forty-three thousand, one hundred fifty-seven".