1228530119 has 4 divisors (see below), whose sum is σ = 1281944496. Its totient is φ = 1175115744.

The previous prime is 1228530097. The next prime is 1228530137. The reversal of 1228530119 is 9110358221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9110358221 = 8737 ⋅1042733.

It is a cyclic number.

It is not a de Polignac number, because 1228530119 - 2¹² = 1228526023 is a prime.

It is a super-2 number, since 2×1228530119² = 3018572506580308322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228530169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26707154 + ... + 26707199.

It is an arithmetic number, because the mean of its divisors is an integer number (320486124).

Almost surely, 2^1228530119 is an apocalyptic number.

1228530119 is a deficient number, since it is larger than the sum of its proper divisors (53414377).

1228530119 is an equidigital number, since it uses as much as digits as its factorization.

1228530119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53414376.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1228530119 is about 35050.3939920795. The cubic root of 1228530119 is about 1071.0142997920.

The spelling of 1228530119 in words is "one billion, two hundred twenty-eight million, five hundred thirty thousand, one hundred nineteen".