125521152 has 72 divisors (see below), whose sum is σ = 335739264. Its totient is φ = 41631744.

The previous prime is 125521141. The next prime is 125521177. The reversal of 125521152 is 251125521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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, 270873 + ... + 271335.

Almost surely, 2^125521152 is an apocalyptic number.

125521152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125521152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167869632).

125521152 is an abundant number, since it is smaller than the sum of its proper divisors (210218112).

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

125521152 is an equidigital number, since it uses as much as digits as its factorization.

125521152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 821 counting only the distinct ones).

The product of its digits is 1000, while the sum is 24.

The square root of 125521152 is about 11203.6222713906. The cubic root of 125521152 is about 500.6939058771.

Adding to 125521152 its reverse (251125521), we get a palindrome (376646673).

The spelling of 125521152 in words is "one hundred twenty-five million, five hundred twenty-one thousand, one hundred fifty-two".