127130369 has 4 divisors (see below), whose sum is σ = 134608644. Its totient is φ = 119652096.

The previous prime is 127130363. The next prime is 127130413. The reversal of 127130369 is 963031721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963031721 = 2671 ⋅360551.

It can be written as a sum of positive squares in 2 ways, for example, as 113529025 + 13601344 = 10655^2 + 3688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127130369 is a prime.

It is a super-2 number, since 2×127130369² = 32324261444152322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (127130363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739112 + ... + 3739145.

It is an arithmetic number, because the mean of its divisors is an integer number (33652161).

Almost surely, 2^127130369 is an apocalyptic number.

It is an amenable number.

127130369 is a deficient number, since it is larger than the sum of its proper divisors (7478275).

127130369 is an equidigital number, since it uses as much as digits as its factorization.

127130369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7478274.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 127130369 is about 11275.2103749775. The cubic root of 127130369 is about 502.8245062839.

The spelling of 127130369 in words is "one hundred twenty-seven million, one hundred thirty thousand, three hundred sixty-nine".