19214289 has 6 divisors (see below), whose sum is σ = 27753986. Its totient is φ = 12809520.

The previous prime is 19214243. The next prime is 19214291. The reversal of 19214289 is 98241291.

It can be written as a sum of positive squares in only one way, i.e., 19210689 + 3600 = 4383^2 + 60^2 .

It is not a de Polignac number, because 19214289 - 2⁷ = 19214161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19214989) 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 5 ways as a sum of consecutive naturals, for example, 1067452 + ... + 1067469.

Almost surely, 2^19214289 is an apocalyptic number.

It is an amenable number.

19214289 is a deficient number, since it is larger than the sum of its proper divisors (8539697).

19214289 is a wasteful number, since it uses less digits than its factorization.

19214289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134927 (or 2134924 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 19214289 is about 4383.4106583801. The cubic root of 19214289 is about 267.8395908346.

It can be divided in two parts, 19214 and 289, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 19214289 in words is "nineteen million, two hundred fourteen thousand, two hundred eighty-nine".