1425811 has 2 divisors, whose sum is σ = 1425812. Its totient is φ = 1425810.

The previous prime is 1425797. The next prime is 1425821. The reversal of 1425811 is 1185241.

It is a strong prime.

It is an emirp because it is prime and its reverse (1185241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1425811 - 2⁹ = 1425299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1425821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712905 + 712906.

It is an arithmetic number, because the mean of its divisors is an integer number (712906).

2^1425811 is an apocalyptic number.

1425811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425811 is an equidigital number, since it uses as much as digits as its factorization.

1425811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320, while the sum is 22.

The square root of 1425811 is about 1194.0732808333. The cubic root of 1425811 is about 112.5521996441.

The spelling of 1425811 in words is "one million, four hundred twenty-five thousand, eight hundred eleven".