194029121 has 16 divisors (see below), whose sum is σ = 239951040. Its totient is φ = 154249920.

The previous prime is 194029091. The next prime is 194029123. The reversal of 194029121 is 121920491.

It is not a de Polignac number, because 194029121 - 2⁶ = 194029057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194029123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32990 + ... + 38423.

It is an arithmetic number, because the mean of its divisors is an integer number (14996940).

Almost surely, 2^194029121 is an apocalyptic number.

194029121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

194029121 is a deficient number, since it is larger than the sum of its proper divisors (45921919).

194029121 is a wasteful number, since it uses less digits than its factorization.

194029121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71456.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 194029121 is about 13929.4336209338. The cubic root of 194029121 is about 578.9250014469.

The spelling of 194029121 in words is "one hundred ninety-four million, twenty-nine thousand, one hundred twenty-one".