125020135 has 12 divisors (see below), whose sum is σ = 153605592. Its totient is φ = 97682928.

The previous prime is 125020127. The next prime is 125020177. The reversal of 125020135 is 531020521.

It is not a de Polignac number, because 125020135 - 2³ = 125020127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2484 + ... + 16006.

It is an arithmetic number, because the mean of its divisors is an integer number (12800466).

Almost surely, 2^125020135 is an apocalyptic number.

125020135 is a deficient number, since it is larger than the sum of its proper divisors (28585457).

125020135 is an equidigital number, since it uses as much as digits as its factorization.

125020135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614 (or 13571 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 125020135 is about 11181.2403158147. The cubic root of 125020135 is about 500.0268452253.

Adding to 125020135 its reverse (531020521), we get a palindrome (656040656).

The spelling of 125020135 in words is "one hundred twenty-five million, twenty thousand, one hundred thirty-five".