125219712 has 64 divisors (see below), whose sum is σ = 338313600. Its totient is φ = 41025024.

The previous prime is 125219711. The next prime is 125219713. The reversal of 125219712 is 217912521.

It is an interprime number because it is at equal distance from previous prime (125219711) and next prime (125219713).

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 125219712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125219711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19893 + ... + 25419.

It is an arithmetic number, because the mean of its divisors is an integer number (5286150).

Almost surely, 2^125219712 is an apocalyptic number.

125219712 is a gapful number since it is divisible by the number (12) 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 125219712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169156800).

125219712 is an abundant number, since it is smaller than the sum of its proper divisors (213093888).

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

125219712 is an equidigital number, since it uses as much as digits as its factorization.

125219712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603 (or 5591 counting only the distinct ones).

The product of its digits is 2520, while the sum is 30.

The square root of 125219712 is about 11190.1613929380. The cubic root of 125219712 is about 500.2927778621.

The spelling of 125219712 in words is "one hundred twenty-five million, two hundred nineteen thousand, seven hundred twelve".