1225254132 has 18 divisors (see below), whose sum is σ = 3097170258. Its totient is φ = 408418032.

The previous prime is 1225254103. The next prime is 1225254133. The reversal of 1225254132 is 2314525221.

1225254132 is a `hidden beast` number, since 1 + 2 + 2 + 525 + 4 + 132 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1125334116 + 99920016 = 33546^2 + 9996^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 1225254096 and 1225254105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225254133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17017383 + ... + 17017454.

Almost surely, 2^1225254132 is an apocalyptic number.

1225254132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225254132 is an abundant number, since it is smaller than the sum of its proper divisors (1871916126).

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

1225254132 is a wasteful number, since it uses less digits than its factorization.

1225254132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034847 (or 34034842 counting only the distinct ones).

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

The square root of 1225254132 is about 35003.6302688735. The cubic root of 1225254132 is about 1070.0614667575.

Adding to 1225254132 its reverse (2314525221), we get a palindrome (3539779353).

The spelling of 1225254132 in words is "one billion, two hundred twenty-five million, two hundred fifty-four thousand, one hundred thirty-two".