193849117 has 32 divisors (see below), whose sum is σ = 249790464. Its totient is φ = 146059200.

The previous prime is 193849081. The next prime is 193849133. The reversal of 193849117 is 711948391.

It is not a de Polignac number, because 193849117 - 2⁷ = 193848989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193829117) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 420267 + ... + 420727.

It is an arithmetic number, because the mean of its divisors is an integer number (7805952).

Almost surely, 2^193849117 is an apocalyptic number.

It is an amenable number.

193849117 is a deficient number, since it is larger than the sum of its proper divisors (55941347).

193849117 is a wasteful number, since it uses less digits than its factorization.

193849117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its digits is 54432, while the sum is 43.

The square root of 193849117 is about 13922.9708395874. The cubic root of 193849117 is about 578.7459199814.

The spelling of 193849117 in words is "one hundred ninety-three million, eight hundred forty-nine thousand, one hundred seventeen".