125342420 has 96 divisors (see below), whose sum is σ = 315076608. Its totient is φ = 40989312.

The previous prime is 125342419. The next prime is 125342443. The reversal of 125342420 is 24243521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282719 + ... + 283161.

It is an arithmetic number, because the mean of its divisors is an integer number (3282048).

Almost surely, 2^125342420 is an apocalyptic number.

125342420 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 125342420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157538304).

125342420 is an abundant number, since it is smaller than the sum of its proper divisors (189734188).

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

125342420 is a wasteful number, since it uses less digits than its factorization.

125342420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 125342420 is about 11195.6429024867. The cubic root of 125342420 is about 500.4561437392.

Adding to 125342420 its reverse (24243521), we get a palindrome (149585941).

The spelling of 125342420 in words is "one hundred twenty-five million, three hundred forty-two thousand, four hundred twenty".