125323220 has 48 divisors (see below), whose sum is σ = 288138816. Its totient is φ = 45408000.

The previous prime is 125323213. The next prime is 125323241. The reversal of 125323220 is 22323521.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 125323192 and 125323201.

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, 71960 + ... + 73680.

It is an arithmetic number, because the mean of its divisors is an integer number (6002892).

Almost surely, 2^125323220 is an apocalyptic number.

125323220 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 125323220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144069408).

125323220 is an abundant number, since it is smaller than the sum of its proper divisors (162815596).

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

125323220 is a wasteful number, since it uses less digits than its factorization.

125323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 125323220 is about 11194.7853932088. The cubic root of 125323220 is about 500.4305890796.

Adding to 125323220 its reverse (22323521), we get a palindrome (147646741).

The spelling of 125323220 in words is "one hundred twenty-five million, three hundred twenty-three thousand, two hundred twenty".