1356919 has 2 divisors, whose sum is σ = 1356920. Its totient is φ = 1356918.

The previous prime is 1356913. The next prime is 1356947. The reversal of 1356919 is 9196531.

It is a weak prime.

It is an emirp because it is prime and its reverse (9196531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1356919 - 2³ = 1356911 is a prime.

It is a super-2 number, since 2×1356919² = 3682458345122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678459 + 678460.

It is an arithmetic number, because the mean of its divisors is an integer number (678460).

2^1356919 is an apocalyptic number.

1356919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356919 is an equidigital number, since it uses as much as digits as its factorization.

1356919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 34.

The square root of 1356919 is about 1164.8686621246. The cubic root of 1356919 is about 110.7094367432.

The spelling of 1356919 in words is "one million, three hundred fifty-six thousand, nine hundred nineteen".