125432028 has 36 divisors (see below), whose sum is σ = 318481800. Its totient is φ = 41623776.

The previous prime is 125432017. The next prime is 125432029. The reversal of 125432028 is 820234521.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 125431992 and 125432010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125432029) 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 11 ways as a sum of consecutive naturals, for example, 498 + ... + 15846.

Almost surely, 2^125432028 is an apocalyptic number.

125432028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

125432028 is an abundant number, since it is smaller than the sum of its proper divisors (193049772).

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

125432028 is a wasteful number, since it uses less digits than its factorization.

125432028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15586 (or 15581 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 125432028 is about 11199.6441014882. The cubic root of 125432028 is about 500.5753749667.

Adding to 125432028 its reverse (820234521), we get a palindrome (945666549).

The spelling of 125432028 in words is "one hundred twenty-five million, four hundred thirty-two thousand, twenty-eight".