1228925 has 6 divisors (see below), whose sum is σ = 1523898. Its totient is φ = 983120.

The previous prime is 1228919. The next prime is 1228937. The reversal of 1228925 is 5298221.

It can be written as a sum of positive squares in 3 ways, for example, as 109561 + 1119364 = 331^2 + 1058^2 .

It is not a de Polignac number, because 1228925 - 2⁶ = 1228861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24554 + ... + 24603.

It is an arithmetic number, because the mean of its divisors is an integer number (253983).

2^1228925 is an apocalyptic number.

It is an amenable number.

1228925 is a deficient number, since it is larger than the sum of its proper divisors (294973).

1228925 is an equidigital number, since it uses as much as digits as its factorization.

1228925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49167 (or 49162 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 1228925 is about 1108.5688972725. The cubic root of 1228925 is about 107.1129037962.

The spelling of 1228925 in words is "one million, two hundred twenty-eight thousand, nine hundred twenty-five".