19196225 has 12 divisors (see below), whose sum is σ = 23858220. Its totient is φ = 15321600.

The previous prime is 19196209. The next prime is 19196227. The reversal of 19196225 is 52269191.

It can be written as a sum of positive squares in 6 ways, for example, as 6265009 + 12931216 = 2503^2 + 3596^2 .

It is not a de Polignac number, because 19196225 - 2⁴ = 19196209 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (19196227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18521 + ... + 19529.

It is an arithmetic number, because the mean of its divisors is an integer number (1988185).

Almost surely, 2^19196225 is an apocalyptic number.

It is an amenable number.

19196225 is a deficient number, since it is larger than the sum of its proper divisors (4661995).

19196225 is a wasteful number, since it uses less digits than its factorization.

19196225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780 (or 1775 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 19196225 is about 4381.3496778961. The cubic root of 19196225 is about 267.7556295118.

The spelling of 19196225 in words is "nineteen million, one hundred ninety-six thousand, two hundred twenty-five".