125100432 has 90 divisors (see below), whose sum is σ = 362947442. Its totient is φ = 40223232.

The previous prime is 125100431. The next prime is 125100497. The reversal of 125100432 is 234001521.

It can be written as a sum of positive squares in 3 ways, for example, as 53934336 + 71166096 = 7344^2 + 8436^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (125100431) 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 17 ways as a sum of consecutive naturals, for example, 120588 + ... + 121620.

Almost surely, 2^125100432 is an apocalyptic number.

125100432 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 125100432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181473721).

125100432 is an abundant number, since it is smaller than the sum of its proper divisors (237847010).

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

125100432 is a wasteful number, since it uses less digits than its factorization.

125100432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 125100432 is about 11184.8304412718. The cubic root of 125100432 is about 500.1338734859.

Adding to 125100432 its reverse (234001521), we get a palindrome (359101953).

The spelling of 125100432 in words is "one hundred twenty-five million, one hundred thousand, four hundred thirty-two".