1238825 has 12 divisors (see below), whose sum is σ = 1755840. Its totient is φ = 849360.

The previous prime is 1238821. The next prime is 1238827. The reversal of 1238825 is 5288321.

It is not a de Polignac number, because 1238825 - 2² = 1238821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1238821) 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 11 ways as a sum of consecutive naturals, for example, 3365 + ... + 3714.

It is an arithmetic number, because the mean of its divisors is an integer number (146320).

2^1238825 is an apocalyptic number.

It is an amenable number.

1238825 is a deficient number, since it is larger than the sum of its proper divisors (517015).

1238825 is an equidigital number, since it uses as much as digits as its factorization.

1238825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096 (or 7091 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 1238825 is about 1113.0251569484. The cubic root of 1238825 is about 107.3997623410.

The spelling of 1238825 in words is "one million, two hundred thirty-eight thousand, eight hundred twenty-five".