125751424 has 64 divisors (see below), whose sum is σ = 272952000. Its totient is φ = 57480192.

The previous prime is 125751421. The next prime is 125751467. The reversal of 125751424 is 424157521.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (125751421) 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 7 ways as a sum of consecutive naturals, for example, 69637 + ... + 71419.

It is an arithmetic number, because the mean of its divisors is an integer number (4264875).

Almost surely, 2^125751424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125751424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136476000).

125751424 is an abundant number, since it is smaller than the sum of its proper divisors (147200576).

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

125751424 is a wasteful number, since it uses less digits than its factorization.

125751424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845 (or 1833 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 125751424 is about 11213.8942388450. The cubic root of 125751424 is about 500.9998977428. Note that the first 3 decimals are identical.

The spelling of 125751424 in words is "one hundred twenty-five million, seven hundred fifty-one thousand, four hundred twenty-four".