1219136 has 28 divisors (see below), whose sum is σ = 2481072. Its totient is φ = 594048.

The previous prime is 1219129. The next prime is 1219147. The reversal of 1219136 is 6319121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2531 + ... + 2973.

2^1219136 is an apocalyptic number.

1219136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1219136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240536).

1219136 is an abundant number, since it is smaller than the sum of its proper divisors (1261936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1219136 is an equidigital number, since it uses as much as digits as its factorization.

1219136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 488 counting only the distinct ones).

The product of its digits is 324, while the sum is 23.

The square root of 1219136 is about 1104.1449180248. The cubic root of 1219136 is about 106.8277427496.

The spelling of 1219136 in words is "one million, two hundred nineteen thousand, one hundred thirty-six".