125534420 has 48 divisors (see below), whose sum is σ = 289916928. Its totient is φ = 45279360.

The previous prime is 125534419. The next prime is 125534441. The reversal of 125534420 is 24435521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125534420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25694 + ... + 30186.

It is an arithmetic number, because the mean of its divisors is an integer number (6039936).

Almost surely, 2^125534420 is an apocalyptic number.

125534420 is a gapful number since it is divisible by the number (10) 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 125534420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144958464).

125534420 is an abundant number, since it is smaller than the sum of its proper divisors (164382508).

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

125534420 is a wasteful number, since it uses less digits than its factorization.

125534420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640 (or 4638 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 125534420 is about 11204.2143856676. The cubic root of 125534420 is about 500.7115469216.

Adding to 125534420 its reverse (24435521), we get a palindrome (149969941).

The spelling of 125534420 in words is "one hundred twenty-five million, five hundred thirty-four thousand, four hundred twenty".