1264825 has 6 divisors (see below), whose sum is σ = 1568414. Its totient is φ = 1011840.

The previous prime is 1264819. The next prime is 1264829. The reversal of 1264825 is 5284621.

It can be written as a sum of positive squares in 3 ways, for example, as 72361 + 1192464 = 269^2 + 1092^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1264825 is a prime.

It is a super-3 number, since 3×1264825³ = 6070333869274546875, which contains 333 as substring.

It is a Duffinian number.

1264825 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1264793 and 1264802.

It is not an unprimeable number, because it can be changed into a prime (1264829) 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 5 ways as a sum of consecutive naturals, for example, 25272 + ... + 25321.

2^1264825 is an apocalyptic number.

It is an amenable number.

1264825 is a deficient number, since it is larger than the sum of its proper divisors (303589).

1264825 is an equidigital number, since it uses as much as digits as its factorization.

1264825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50603 (or 50598 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 1264825 is about 1124.6443882401. The cubic root of 1264825 is about 108.1459218650.

The spelling of 1264825 in words is "one million, two hundred sixty-four thousand, eight hundred twenty-five".