125401320 has 96 divisors (see below), whose sum is σ = 444618720. Its totient is φ = 30399360.

The previous prime is 125401303. The next prime is 125401321. The reversal of 125401320 is 23104521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 125401293 and 125401302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125401321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11874 + ... + 19793.

It is an arithmetic number, because the mean of its divisors is an integer number (4631445).

Almost surely, 2^125401320 is an apocalyptic number.

125401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125401320 is an abundant number, since it is smaller than the sum of its proper divisors (319217400).

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

125401320 is a wasteful number, since it uses less digits than its factorization.

125401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31695 (or 31688 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 125401320 is about 11198.2730811496. The cubic root of 125401320 is about 500.5345217028.

Adding to 125401320 its reverse (23104521), we get a palindrome (148505841).

The spelling of 125401320 in words is "one hundred twenty-five million, four hundred one thousand, three hundred twenty".