1254511125 has 64 divisors (see below), whose sum is σ = 2650851840. Its totient is φ = 573480000.

The previous prime is 1254511091. The next prime is 1254511127. The reversal of 1254511125 is 5211154521.

It is a happy number.

1254511125 is a `hidden beast` number, since 1 + 2 + 545 + 1 + 112 + 5 = 666.

It is not a de Polignac number, because 1254511125 - 2⁷ = 1254510997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254511127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2926 + ... + 50175.

It is an arithmetic number, because the mean of its divisors is an integer number (41419560).

Almost surely, 2^1254511125 is an apocalyptic number.

1254511125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1254511125 is an abundant number, since it is smaller than the sum of its proper divisors (1396340715).

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

1254511125 is an equidigital number, since it uses as much as digits as its factorization.

1254511125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53132 (or 53116 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 1254511125 is about 35419.0785453264. The cubic root of 1254511125 is about 1078.5116458205.

Adding to 1254511125 its reverse (5211154521), we get a palindrome (6465665646).

The spelling of 1254511125 in words is "one billion, two hundred fifty-four million, five hundred eleven thousand, one hundred twenty-five".