19234117 has 18 divisors (see below), whose sum is σ = 23204358. Its totient is φ = 15885072.

The previous prime is 19234109. The next prime is 19234129. The reversal of 19234117 is 71143291.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 519841 = 4326^2 + 721^2 .

It is not a de Polignac number, because 19234117 - 2³ = 19234109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19234147) 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 17 ways as a sum of consecutive naturals, for example, 186688 + ... + 186790.

It is an arithmetic number, because the mean of its divisors is an integer number (1289131).

Almost surely, 2^19234117 is an apocalyptic number.

It is an amenable number.

19234117 is a deficient number, since it is larger than the sum of its proper divisors (3970241).

19234117 is an equidigital number, since it uses as much as digits as its factorization.

19234117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 147 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 19234117 is about 4385.6717843450. The cubic root of 19234117 is about 267.9316906546.

The spelling of 19234117 in words is "nineteen million, two hundred thirty-four thousand, one hundred seventeen".