125242620 has 24 divisors (see below), whose sum is σ = 350679504. Its totient is φ = 33398016.

The previous prime is 125242591. The next prime is 125242627. The reversal of 125242620 is 26242521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125242627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1043629 + ... + 1043748.

It is an arithmetic number, because the mean of its divisors is an integer number (14611646).

Almost surely, 2^125242620 is an apocalyptic number.

125242620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125242620 is an abundant number, since it is smaller than the sum of its proper divisors (225436884).

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

125242620 is a wasteful number, since it uses less digits than its factorization.

125242620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087389 (or 2087387 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 125242620 is about 11191.1849238586. The cubic root of 125242620 is about 500.3232842629.

Subtracting from 125242620 its reverse (26242521), we obtain a palindrome (99000099).

The spelling of 125242620 in words is "one hundred twenty-five million, two hundred forty-two thousand, six hundred twenty".