127125469 has 2 divisors, whose sum is σ = 127125470. Its totient is φ = 127125468.

The previous prime is 127125463. The next prime is 127125491. The reversal of 127125469 is 964521721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83960569 + 43164900 = 9163^2 + 6570^2 .

It is a cyclic number.

It is not a de Polignac number, because 127125469 - 2⁹ = 127124957 is a prime.

It is a super-2 number, since 2×127125469² = 32321769736939922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127125463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63562734 + 63562735.

It is an arithmetic number, because the mean of its divisors is an integer number (63562735).

Almost surely, 2^127125469 is an apocalyptic number.

It is an amenable number.

127125469 is a deficient number, since it is larger than the sum of its proper divisors (1).

127125469 is an equidigital number, since it uses as much as digits as its factorization.

127125469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 127125469 is about 11274.9930820378. The cubic root of 127125469 is about 502.8180460606.

It can be divided in two parts, 12712 and 5469, that added together give a palindrome (18181).

The spelling of 127125469 in words is "one hundred twenty-seven million, one hundred twenty-five thousand, four hundred sixty-nine".