1235825 has 6 divisors (see below), whose sum is σ = 1532454. Its totient is φ = 988640.

The previous prime is 1235821. The next prime is 1235831. The reversal of 1235825 is 5285321.

It can be written as a sum of positive squares in 3 ways, for example, as 135424 + 1100401 = 368^2 + 1049^2 .

It is not a de Polignac number, because 1235825 - 2² = 1235821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1235794 and 1235803.

It is not an unprimeable number, because it can be changed into a prime (1235821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24692 + ... + 24741.

It is an arithmetic number, because the mean of its divisors is an integer number (255409).

2^1235825 is an apocalyptic number.

It is an amenable number.

1235825 is a deficient number, since it is larger than the sum of its proper divisors (296629).

1235825 is an equidigital number, since it uses as much as digits as its factorization.

1235825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49443 (or 49438 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1235825 is about 1111.6766616242. The cubic root of 1235825 is about 107.3129974032.

The spelling of 1235825 in words is "one million, two hundred thirty-five thousand, eight hundred twenty-five".