125224665 has 16 divisors (see below), whose sum is σ = 200614848. Its totient is φ = 66701376.

The previous prime is 125224663. The next prime is 125224709. The reversal of 125224665 is 566422521.

It is not a de Polignac number, because 125224665 - 2¹ = 125224663 is a prime.

It is a super-3 number, since 3×125224665³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (125224661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7902 + ... + 17688.

It is an arithmetic number, because the mean of its divisors is an integer number (12538428).

Almost surely, 2^125224665 is an apocalyptic number.

125224665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125224665 is a deficient number, since it is larger than the sum of its proper divisors (75390183).

125224665 is an equidigital number, since it uses as much as digits as its factorization.

125224665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648.

The product of its digits is 28800, while the sum is 33.

The square root of 125224665 is about 11190.3827012306. The cubic root of 125224665 is about 500.2993740479.

The spelling of 125224665 in words is "one hundred twenty-five million, two hundred twenty-four thousand, six hundred sixty-five".