125134033428 has 36 divisors (see below), whose sum is σ = 316742625108. Its totient is φ = 41654430720.

The previous prime is 125134033391. The next prime is 125134033429. The reversal of 125134033428 is 824330431521.

It can be written as a sum of positive squares in 2 ways, for example, as 70372417284 + 54761616144 = 265278^2 + 234012^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 125134033392 and 125134033401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125134033429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2344653 + ... + 2397428.

It is an arithmetic number, because the mean of its divisors is an integer number (8798406253).

Almost surely, 2^125134033428 is an apocalyptic number.

125134033428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

125134033428 is an abundant number, since it is smaller than the sum of its proper divisors (191608591680).

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

125134033428 is a wasteful number, since it uses less digits than its factorization.

125134033428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742824 (or 4742819 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 125134033428 its reverse (824330431521), we get a palindrome (949464464949).

The spelling of 125134033428 in words is "one hundred twenty-five billion, one hundred thirty-four million, thirty-three thousand, four hundred twenty-eight".