125210420 has 12 divisors (see below), whose sum is σ = 262941924. Its totient is φ = 50084160.

The previous prime is 125210419. The next prime is 125210431. The reversal of 125210420 is 24012521.

It can be written as a sum of positive squares in 2 ways, for example, as 80748196 + 44462224 = 8986^2 + 6668^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3130241 + ... + 3130280.

It is an arithmetic number, because the mean of its divisors is an integer number (21911827).

Almost surely, 2^125210420 is an apocalyptic number.

125210420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125210420 is an abundant number, since it is smaller than the sum of its proper divisors (137731504).

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

125210420 is a wasteful number, since it uses less digits than its factorization.

125210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260530 (or 6260528 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 125210420 is about 11189.7461990878. The cubic root of 125210420 is about 500.2804027192.

Adding to 125210420 its reverse (24012521), we get a palindrome (149222941).

The spelling of 125210420 in words is "one hundred twenty-five million, two hundred ten thousand, four hundred twenty".