125305487 has 12 divisors (see below), whose sum is σ = 133670256. Its totient is φ = 117438720.

The previous prime is 125305459. The next prime is 125305493. The reversal of 125305487 is 784503521.

It is a happy number.

It is not a de Polignac number, because 125305487 - 2⁶ = 125305423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125305417) 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 11 ways as a sum of consecutive naturals, for example, 80438 + ... + 81980.

It is an arithmetic number, because the mean of its divisors is an integer number (11139188).

Almost surely, 2^125305487 is an apocalyptic number.

125305487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

125305487 is a deficient number, since it is larger than the sum of its proper divisors (8364769).

125305487 is a wasteful number, since it uses less digits than its factorization.

125305487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 125305487 is about 11193.9933446469. The cubic root of 125305487 is about 500.4069846371.

The spelling of 125305487 in words is "one hundred twenty-five million, three hundred five thousand, four hundred eighty-seven".