125113220 has 12 divisors (see below), whose sum is σ = 262737804. Its totient is φ = 50045280.

The previous prime is 125113211. The next prime is 125113223. The reversal of 125113220 is 22311521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68923204 + 56190016 = 8302^2 + 7496^2 .

It is not an unprimeable number, because it can be changed into a prime (125113223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3127811 + ... + 3127850.

It is an arithmetic number, because the mean of its divisors is an integer number (21894817).

Almost surely, 2^125113220 is an apocalyptic number.

125113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125113220 is an abundant number, since it is smaller than the sum of its proper divisors (137624584).

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

125113220 is a wasteful number, since it uses less digits than its factorization.

125113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255670 (or 6255668 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 125113220 is about 11185.4020938007. The cubic root of 125113220 is about 500.1509144451.

Adding to 125113220 its reverse (22311521), we get a palindrome (147424741).

The spelling of 125113220 in words is "one hundred twenty-five million, one hundred thirteen thousand, two hundred twenty".