125840272 has 10 divisors (see below), whose sum is σ = 243815558. Its totient is φ = 62920128.

The previous prime is 125840257. The next prime is 125840311. The reversal of 125840272 is 272048521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 125798656 + 41616 = 11216^2 + 204^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932493 + ... + 3932524.

Almost surely, 2^125840272 is an apocalyptic number.

It is an amenable number.

125840272 is a deficient number, since it is larger than the sum of its proper divisors (117975286).

125840272 is an equidigital number, since it uses as much as digits as its factorization.

125840272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865025 (or 7865019 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 125840272 is about 11217.8550534405. The cubic root of 125840272 is about 501.1178615751.

Adding to 125840272 its reverse (272048521), we get a palindrome (397888793).

The spelling of 125840272 in words is "one hundred twenty-five million, eight hundred forty thousand, two hundred seventy-two".