1312254000225 has 72 divisors (see below), whose sum is σ = 2710807161920. Its totient is φ = 594383909760.

The previous prime is 1312254000217. The next prime is 1312254000229. The reversal of 1312254000225 is 5220004522131.

1312254000225 is a `hidden beast` number, since 1 + 3 + 12 + 25 + 400 + 0 + 225 = 666.

It is not a de Polignac number, because 1312254000225 - 2³ = 1312254000217 is a prime.

It is a super-2 number, since 2×1312254000225² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312254000229) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3650239 + ... + 3993588.

Almost surely, 2^{1312254000225} is an apocalyptic number.

1312254000225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312254000225 is an abundant number, since it is smaller than the sum of its proper divisors (1398553161695).

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

1312254000225 is a wasteful number, since it uses less digits than its factorization.

1312254000225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643959 (or 7643951 counting only the distinct ones).

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

Adding to 1312254000225 its reverse (5220004522131), we get a palindrome (6532258522356).

The spelling of 1312254000225 in words is "one trillion, three hundred twelve billion, two hundred fifty-four million, two hundred twenty-five", and thus it is an aban number.