1253828219 has 24 divisors (see below), whose sum is σ = 1475182800. Its totient is φ = 1062524736.

The previous prime is 1253828209. The next prime is 1253828227. The reversal of 1253828219 is 9128283521.

It is not a de Polignac number, because 1253828219 - 2⁴ = 1253828203 is a prime.

It is a super-2 number, since 2×1253828219² = 3144170405521423922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253828209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2684624 + ... + 2685090.

It is an arithmetic number, because the mean of its divisors is an integer number (61465950).

Almost surely, 2^1253828219 is an apocalyptic number.

1253828219 is a deficient number, since it is larger than the sum of its proper divisors (221354581).

1253828219 is a wasteful number, since it uses less digits than its factorization.

1253828219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 980 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 1253828219 is about 35409.4368636385. The cubic root of 1253828219 is about 1078.3159106733.

The spelling of 1253828219 in words is "one billion, two hundred fifty-three million, eight hundred twenty-eight thousand, two hundred nineteen".