1423187 has 2 divisors, whose sum is σ = 1423188. Its totient is φ = 1423186.

The previous prime is 1423183. The next prime is 1423193. The reversal of 1423187 is 7813241.

It is a weak prime.

It is an emirp because it is prime and its reverse (7813241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423187 - 2² = 1423183 is a prime.

It is a super-2 number, since 2×1423187² = 4050922473938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1423181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711593 + 711594.

It is an arithmetic number, because the mean of its divisors is an integer number (711594).

2^1423187 is an apocalyptic number.

1423187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423187 is an equidigital number, since it uses as much as digits as its factorization.

1423187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 1423187 is about 1192.9740148050. The cubic root of 1423187 is about 112.4831118682.

The spelling of 1423187 in words is "one million, four hundred twenty-three thousand, one hundred eighty-seven".