125221448 has 24 divisors (see below), whose sum is σ = 258077190. Its totient is φ = 56918400.

The previous prime is 125221441. The next prime is 125221463. The reversal of 125221448 is 844122521.

It can be written as a sum of positive squares in only one way, i.e., 97574884 + 27646564 = 9878^2 + 5258^2 .

It is a super-2 number, since 2×125221448² = 31360822078433408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125221448.

It is not an unprimeable number, because it can be changed into a prime (125221441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63713 + ... + 65648.

Almost surely, 2^125221448 is an apocalyptic number.

It is an amenable number.

125221448 is an abundant number, since it is smaller than the sum of its proper divisors (132855742).

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

125221448 is a wasteful number, since it uses less digits than its factorization.

125221448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129389 (or 129374 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 125221448 is about 11190.2389608087. The cubic root of 125221448 is about 500.2950898097.

Adding to 125221448 its reverse (844122521), we get a palindrome (969343969).

The spelling of 125221448 in words is "one hundred twenty-five million, two hundred twenty-one thousand, four hundred forty-eight".