1425869 has 8 divisors (see below), whose sum is σ = 1484280. Its totient is φ = 1368576.

The previous prime is 1425863. The next prime is 1425877. The reversal of 1425869 is 9685241.

It can be written as a sum of positive squares in 4 ways, for example, as 75625 + 1350244 = 275^2 + 1162^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1425869 - 2¹² = 1421773 is a prime.

It is a super-2 number, since 2×1425869² = 4066204810322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3077 + ... + 3509.

It is an arithmetic number, because the mean of its divisors is an integer number (185535).

2^1425869 is an apocalyptic number.

It is an amenable number.

1425869 is a deficient number, since it is larger than the sum of its proper divisors (58411).

1425869 is an equidigital number, since it uses as much as digits as its factorization.

1425869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559.

The product of its digits is 17280, while the sum is 35.

The square root of 1425869 is about 1194.0975672029. The cubic root of 1425869 is about 112.5537257788.

The spelling of 1425869 in words is "one million, four hundred twenty-five thousand, eight hundred sixty-nine".