1219133225 has 18 divisors (see below), whose sum is σ = 1537891710. Its totient is φ = 958707520.

The previous prime is 1219133207. The next prime is 1219133269. The reversal of 1219133225 is 5223319121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 188980009 + 1030153216 = 13747^2 + 32096^2 .

It is not a de Polignac number, because 1219133225 - 2²⁶ = 1152024361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 80021 + ... + 94029.

Almost surely, 2^1219133225 is an apocalyptic number.

It is an amenable number.

1219133225 is a deficient number, since it is larger than the sum of its proper divisors (318758485).

1219133225 is an equidigital number, since it uses as much as digits as its factorization.

1219133225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14137 (or 14073 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 1219133225 is about 34916.0883404771. The cubic root of 1219133225 is about 1068.2766169566.

The spelling of 1219133225 in words is "one billion, two hundred nineteen million, one hundred thirty-three thousand, two hundred twenty-five".