125213040 has 280 divisors, whose sum is σ = 463519440. Its totient is φ = 31352832.

The previous prime is 125213027. The next prime is 125213047. The reversal of 125213040 is 40312521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125213047) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1108024 + ... + 1108136.

Almost surely, 2^125213040 is an apocalyptic number.

125213040 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 125213040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231759720).

125213040 is an abundant number, since it is smaller than the sum of its proper divisors (338306400).

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

125213040 is a wasteful number, since it uses less digits than its factorization.

125213040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 142 counting only the distinct ones).

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

The square root of 125213040 is about 11189.8632699421. The cubic root of 125213040 is about 500.2838921134.

Adding to 125213040 its reverse (40312521), we get a palindrome (165525561).

The spelling of 125213040 in words is "one hundred twenty-five million, two hundred thirteen thousand, forty".