1427425 has 6 divisors (see below), whose sum is σ = 1770038. Its totient is φ = 1141920.

The previous prime is 1427411. The next prime is 1427431. The reversal of 1427425 is 5247241.

It can be written as a sum of positive squares in 3 ways, for example, as 6561 + 1420864 = 81^2 + 1192^2 .

It is not a de Polignac number, because 1427425 - 2⁷ = 1427297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 57097 = 1427425 / (1 + 4 + 2 + 7 + 4 + 2 + 5).

It is a Duffinian number.

1427425 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1427425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28524 + ... + 28573.

2^1427425 is an apocalyptic number.

It is an amenable number.

1427425 is a deficient number, since it is larger than the sum of its proper divisors (342613).

1427425 is an equidigital number, since it uses as much as digits as its factorization.

1427425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57107 (or 57102 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 1427425 is about 1194.7489275994. The cubic root of 1427425 is about 112.5946528510.

The spelling of 1427425 in words is "one million, four hundred twenty-seven thousand, four hundred twenty-five".