1222525 has 12 divisors (see below), whose sum is σ = 1537600. Its totient is φ = 964080.

The previous prime is 1222523. The next prime is 1222537. The reversal of 1222525 is 5252221.

It is not a de Polignac number, because 1222525 - 2¹ = 1222523 is a prime.

1222525 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1666 + ... + 2284.

2^1222525 is an apocalyptic number.

It is an amenable number.

1222525 is a deficient number, since it is larger than the sum of its proper divisors (315075).

1222525 is an equidigital number, since it uses as much as digits as its factorization.

1222525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 703 counting only the distinct ones).

The product of its digits is 400, while the sum is 19.

The square root of 1222525 is about 1105.6785247078. The cubic root of 1222525 is about 106.9266390902.

Adding to 1222525 its reverse (5252221), we get a palindrome (6474746).

The spelling of 1222525 in words is "one million, two hundred twenty-two thousand, five hundred twenty-five".