1224525 has 24 divisors (see below), whose sum is σ = 2098080. Its totient is φ = 629440.

The previous prime is 1224481. The next prime is 1224529. The reversal of 1224525 is 5254221.

It is a happy number.

It is not a de Polignac number, because 1224525 - 2⁸ = 1224269 is a prime.

It is a super-2 number, since 2×1224525² = 2998922951250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1894 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (87420).

2^1224525 is an apocalyptic number.

1224525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224525 is a deficient number, since it is larger than the sum of its proper divisors (873555).

1224525 is a wasteful number, since it uses less digits than its factorization.

1224525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 600 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 1224525 is about 1106.5825771265. The cubic root of 1224525 is about 106.9849164984.

Adding to 1224525 its reverse (5254221), we get a palindrome (6478746).

The spelling of 1224525 in words is "one million, two hundred twenty-four thousand, five hundred twenty-five".