1425769 has 2 divisors, whose sum is σ = 1425770. Its totient is φ = 1425768.

The previous prime is 1425757. The next prime is 1425791. The reversal of 1425769 is 9675241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1236544 + 189225 = 1112^2 + 435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425769 is a prime.

It is a super-2 number, since 2×1425769² = 4065634482722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1425169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712884 + 712885.

It is an arithmetic number, because the mean of its divisors is an integer number (712885).

2^1425769 is an apocalyptic number.

It is an amenable number.

1425769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425769 is an equidigital number, since it uses as much as digits as its factorization.

1425769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 1425769 is about 1194.0556938435. The cubic root of 1425769 is about 112.5510944862.

The spelling of 1425769 in words is "one million, four hundred twenty-five thousand, seven hundred sixty-nine".