125415320 has 48 divisors (see below), whose sum is σ = 295036560. Its totient is φ = 47976896.

The previous prime is 125415319. The next prime is 125415337. The reversal of 125415320 is 23514521.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 11 ways as a sum of consecutive naturals, for example, 18197 + ... + 24123.

It is an arithmetic number, because the mean of its divisors is an integer number (6146595).

Almost surely, 2^125415320 is an apocalyptic number.

125415320 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 125415320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147518280).

125415320 is an abundant number, since it is smaller than the sum of its proper divisors (169621240).

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

125415320 is a wasteful number, since it uses less digits than its factorization.

125415320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5984 (or 5957 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 125415320 is about 11198.8981600870. The cubic root of 125415320 is about 500.5531478293.

Adding to 125415320 its reverse (23514521), we get a palindrome (148929841).

The spelling of 125415320 in words is "one hundred twenty-five million, four hundred fifteen thousand, three hundred twenty".