1224135025 has 24 divisors (see below), whose sum is σ = 1532759040. Its totient is φ = 969791040.

The previous prime is 1224135001. The next prime is 1224135043. The reversal of 1224135025 is 5205314221.

It is not a de Polignac number, because 1224135025 - 2⁵ = 1224134993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1656106 + ... + 1656844.

It is an arithmetic number, because the mean of its divisors is an integer number (63864960).

Almost surely, 2^1224135025 is an apocalyptic number.

It is an amenable number.

1224135025 is a deficient number, since it is larger than the sum of its proper divisors (308624015).

1224135025 is a wasteful number, since it uses less digits than its factorization.

1224135025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1224135025 is about 34987.6410322274. The cubic root of 1224135025 is about 1069.7355811523.

Adding to 1224135025 its reverse (5205314221), we get a palindrome (6429449246).

The spelling of 1224135025 in words is "one billion, two hundred twenty-four million, one hundred thirty-five thousand, twenty-five".