Search a number
BaseRepresentation
bin10110010001
31221210
4112101
521200
610333
74104
oct2621
91853
101425
111086
129a9
13858
1473b
15650
hex591

1425 has 12 divisors (see below), whose sum is σ = 2480. Its totient is φ = 720.

The previous prime is 1423. The next prime is 1427. The reversal of 1425 is 5241.

Adding to 1425 its reverse (5241), we get a palindrome (6666).

1425 is nontrivially palindromic in base 12 and base 13.

1425 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (1423) and next prime (1427).

It is not a de Polignac number, because 1425 - 21 = 1423 is a prime.

1425 is an undulating number in base 12 and base 13.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 1425.

It is not an unprimeable number, because it can be changed into a prime (1423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66 + ... + 84.

1425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425 is a deficient number, since it is larger than the sum of its proper divisors (1055).

1425 is a wasteful number, since it uses less digits than its factorization.

1425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32 (or 27 counting only the distinct ones).

The product of its digits is 40, while the sum is 12.

The square root of 1425 is about 37.7491721764. The cubic root of 1425 is about 11.2530855734.

The spelling of 1425 in words is "one thousand, four hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 285 475 1425