1425091 has 2 divisors, whose sum is σ = 1425092. Its totient is φ = 1425090.

The previous prime is 1425079. The next prime is 1425097. The reversal of 1425091 is 1905241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1425091 - 2⁷ = 1424963 is a prime.

It is equal to p₁₀₈₈₅₀ and since 1425091 and 108850 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1425097) 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, 712545 + 712546.

It is an arithmetic number, because the mean of its divisors is an integer number (712546).

2^1425091 is an apocalyptic number.

1425091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425091 is an equidigital number, since it uses as much as digits as its factorization.

1425091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1425091 is about 1193.7717537285. The cubic root of 1425091 is about 112.5332510765.

It can be divided in two parts, 14250 and 91, that added together give a palindrome (14341).

The spelling of 1425091 in words is "one million, four hundred twenty-five thousand, ninety-one".