194750155 has 4 divisors (see below), whose sum is σ = 233700192. Its totient is φ = 155800120.

The previous prime is 194750111. The next prime is 194750161. The reversal of 194750155 is 551057491.

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

It is not a de Polignac number, because 194750155 - 2¹⁵ = 194717387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19475011 + ... + 19475020.

It is an arithmetic number, because the mean of its divisors is an integer number (58425048).

Almost surely, 2^194750155 is an apocalyptic number.

194750155 is a deficient number, since it is larger than the sum of its proper divisors (38950037).

194750155 is an equidigital number, since it uses as much as digits as its factorization.

194750155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38950036.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 194750155 is about 13955.2912904031. The cubic root of 194750155 is about 579.6412317506.

The spelling of 194750155 in words is "one hundred ninety-four million, seven hundred fifty thousand, one hundred fifty-five".