194145029 has 16 divisors (see below), whose sum is σ = 213880128. Its totient is φ = 175139712.

The previous prime is 194145019. The next prime is 194145037. The reversal of 194145029 is 920541491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194145029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194145029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194145019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118514 + ... + 120140.

It is an arithmetic number, because the mean of its divisors is an integer number (13367508).

Almost surely, 2^194145029 is an apocalyptic number.

It is an amenable number.

194145029 is a deficient number, since it is larger than the sum of its proper divisors (19735099).

194145029 is a wasteful number, since it uses less digits than its factorization.

194145029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 194145029 is about 13933.5935422274. The cubic root of 194145029 is about 579.0402567953.

The spelling of 194145029 in words is "one hundred ninety-four million, one hundred forty-five thousand, twenty-nine".