125331420 has 48 divisors (see below), whose sum is σ = 352241568. Its totient is φ = 33296640.

The previous prime is 125331403. The next prime is 125331431. The reversal of 125331420 is 24133521.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12850 + ... + 20390.

It is an arithmetic number, because the mean of its divisors is an integer number (7338366).

Almost surely, 2^125331420 is an apocalyptic number.

125331420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125331420 is an abundant number, since it is smaller than the sum of its proper divisors (226910148).

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

125331420 is a wasteful number, since it uses less digits than its factorization.

125331420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830 (or 7828 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 125331420 is about 11195.1516291652. The cubic root of 125331420 is about 500.4415033681.

Adding to 125331420 its reverse (24133521), we get a palindrome (149464941).

It can be divided in two parts, 125331 and 420, that added together give a triangular number (125751 = T₅₀₁).

The spelling of 125331420 in words is "one hundred twenty-five million, three hundred thirty-one thousand, four hundred twenty".