1219081 has 2 divisors, whose sum is σ = 1219082. Its totient is φ = 1219080.

The previous prime is 1219061. The next prime is 1219091. The reversal of 1219081 is 1809121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 95481 = 1060^2 + 309^2 .

It is an emirp because it is prime and its reverse (1809121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1219081 - 2⁷ = 1218953 is a prime.

It is a super-2 number, since 2×1219081² = 2972316969122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1219061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609540 + 609541.

It is an arithmetic number, because the mean of its divisors is an integer number (609541).

2^1219081 is an apocalyptic number.

It is an amenable number.

1219081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219081 is an equidigital number, since it uses as much as digits as its factorization.

1219081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1219081 is about 1104.1200115929. The cubic root of 1219081 is about 106.8261362528.

The spelling of 1219081 in words is "one million, two hundred nineteen thousand, eighty-one".