1225134252 has 36 divisors (see below), whose sum is σ = 3140491536. Its totient is φ = 402625440.

The previous prime is 1225134247. The next prime is 1225134277. The reversal of 1225134252 is 2524315221.

1225134252 is a `hidden beast` number, since 1 + 225 + 13 + 425 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237103 + ... + 242214.

It is an arithmetic number, because the mean of its divisors is an integer number (87235876).

Almost surely, 2^1225134252 is an apocalyptic number.

1225134252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225134252 is an abundant number, since it is smaller than the sum of its proper divisors (1915357284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225134252 is a wasteful number, since it uses less digits than its factorization.

1225134252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479398 (or 479393 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1225134252 is about 35001.9178331702. The cubic root of 1225134252 is about 1070.0265670173.

Adding to 1225134252 its reverse (2524315221), we get a palindrome (3749449473).

The spelling of 1225134252 in words is "one billion, two hundred twenty-five million, one hundred thirty-four thousand, two hundred fifty-two".