19106225 has 6 divisors (see below), whose sum is σ = 23691750. Its totient is φ = 15284960.

The previous prime is 19106209. The next prime is 19106251. The reversal of 19106225 is 52260191.

It can be written as a sum of positive squares in 3 ways, for example, as 3810304 + 15295921 = 1952^2 + 3911^2 .

It is not a de Polignac number, because 19106225 - 2⁴ = 19106209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19106194 and 19106203.

It is an unprimeable number.

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, 382100 + ... + 382149.

It is an arithmetic number, because the mean of its divisors is an integer number (3948625).

Almost surely, 2^19106225 is an apocalyptic number.

It is an amenable number.

19106225 is a deficient number, since it is larger than the sum of its proper divisors (4585525).

19106225 is an equidigital number, since it uses as much as digits as its factorization.

19106225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764259 (or 764254 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 19106225 is about 4371.0668034245. The cubic root of 19106225 is about 267.3365234012.

The spelling of 19106225 in words is "nineteen million, one hundred six thousand, two hundred twenty-five".