127650125 has 16 divisors (see below), whose sum is σ = 161928624. Its totient is φ = 100440000.

The previous prime is 127650121. The next prime is 127650137. The reversal of 127650125 is 521056721.

It can be written as a sum of positive squares in 8 ways, for example, as 39778249 + 87871876 = 6307^2 + 9374^2 .

It is not a de Polignac number, because 127650125 - 2² = 127650121 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127650121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746 + ... + 15995.

It is an arithmetic number, because the mean of its divisors is an integer number (10120539).

Almost surely, 2^127650125 is an apocalyptic number.

It is an amenable number.

127650125 is a deficient number, since it is larger than the sum of its proper divisors (34278499).

127650125 is an equidigital number, since it uses as much as digits as its factorization.

127650125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16817 (or 16807 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 127650125 is about 11298.2354817024. The cubic root of 127650125 is about 503.5088187816.

The spelling of 127650125 in words is "one hundred twenty-seven million, six hundred fifty thousand, one hundred twenty-five".