19225233 has 6 divisors (see below), whose sum is σ = 27769794. Its totient is φ = 12816816.

The previous prime is 19225223. The next prime is 19225253. The reversal of 19225233 is 33252291.

It can be written as a sum of positive squares in only one way, i.e., 15776784 + 3448449 = 3972^2 + 1857^2 .

It is not a de Polignac number, because 19225233 - 2⁵ = 19225201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19225197 and 19225206.

It is not an unprimeable number, because it can be changed into a prime (19225223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1068060 + ... + 1068077.

It is an arithmetic number, because the mean of its divisors is an integer number (4628299).

Almost surely, 2^19225233 is an apocalyptic number.

It is an amenable number.

19225233 is a deficient number, since it is larger than the sum of its proper divisors (8544561).

19225233 is a wasteful number, since it uses less digits than its factorization.

19225233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136143 (or 2136140 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 19225233 is about 4384.6588236715. The cubic root of 19225233 is about 267.8904328606.

It can be divided in two parts, 192 and 25233, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 19225233 in words is "nineteen million, two hundred twenty-five thousand, two hundred thirty-three".