125791428 has 144 divisors (see below), whose sum is σ = 361181184. Its totient is φ = 33929280.

The previous prime is 125791427. The next prime is 125791429. The reversal of 125791428 is 824197521.

It is an interprime number because it is at equal distance from previous prime (125791427) and next prime (125791429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125791423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1221225 + ... + 1221327.

Almost surely, 2^125791428 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 125791428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180590592).

125791428 is an abundant number, since it is smaller than the sum of its proper divisors (235389756).

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

125791428 is a wasteful number, since it uses less digits than its factorization.

125791428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 213 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 125791428 is about 11215.6777771118. The cubic root of 125791428 is about 501.0530180823.

The spelling of 125791428 in words is "one hundred twenty-five million, seven hundred ninety-one thousand, four hundred twenty-eight".