1427565 has 16 divisors (see below), whose sum is σ = 2404800. Its totient is φ = 721152.

The previous prime is 1427563. The next prime is 1427567. The reversal of 1427565 is 5657241.

It is an interprime number because it is at equal distance from previous prime (1427563) and next prime (1427567).

It is not a de Polignac number, because 1427565 - 2¹ = 1427563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427561) by changing a digit.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2220 + ... + 2789.

It is an arithmetic number, because the mean of its divisors is an integer number (150300).

2^1427565 is an apocalyptic number.

1427565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1427565 is a deficient number, since it is larger than the sum of its proper divisors (977235).

1427565 is a wasteful number, since it uses less digits than its factorization.

1427565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036.

The product of its digits is 8400, while the sum is 30.

The square root of 1427565 is about 1194.8075158786. The cubic root of 1427565 is about 112.5983337767.

The spelling of 1427565 in words is "one million, four hundred twenty-seven thousand, five hundred sixty-five".