1219138 has 16 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 548416.

The previous prime is 1219129. The next prime is 1219147. The reversal of 1219138 is 8319121.

It is an interprime number because it is at equal distance from previous prime (1219129) and next prime (1219147).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (126360).

2^1219138 is an apocalyptic number.

1219138 is a deficient number, since it is larger than the sum of its proper divisors (802622).

1219138 is a wasteful number, since it uses less digits than its factorization.

1219138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601.

The product of its digits is 432, while the sum is 25.

The square root of 1219138 is about 1104.1458237026. The cubic root of 1219138 is about 106.8278011667.

The spelling of 1219138 in words is "one million, two hundred nineteen thousand, one hundred thirty-eight".