194609153 has 16 divisors (see below), whose sum is σ = 208608000. Its totient is φ = 181014912.

The previous prime is 194609147. The next prime is 194609161. The reversal of 194609153 is 351906491.

It is not a de Polignac number, because 194609153 - 2⁴ = 194609137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194609113) 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, 475613 + ... + 476021.

It is an arithmetic number, because the mean of its divisors is an integer number (13038000).

It is a Proth number, since it is equal to 5939 ⋅ 2¹⁵ + 1 and 5939 < 2¹⁵.

Almost surely, 2^194609153 is an apocalyptic number.

It is an amenable number.

194609153 is a deficient number, since it is larger than the sum of its proper divisors (13998847).

194609153 is a wasteful number, since it uses less digits than its factorization.

194609153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 194609153 is about 13950.2384567433. The cubic root of 194609153 is about 579.5013083607.

The spelling of 194609153 in words is "one hundred ninety-four million, six hundred nine thousand, one hundred fifty-three".