127330057 has 4 divisors (see below), whose sum is σ = 128642836. Its totient is φ = 126017280.

The previous prime is 127330043. The next prime is 127330069. The reversal of 127330057 is 750033721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750033721 = 19 ⋅39475459.

It can be written as a sum of positive squares in 2 ways, for example, as 27709696 + 99620361 = 5264^2 + 9981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127330057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127330037) 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, 656244 + ... + 656437.

It is an arithmetic number, because the mean of its divisors is an integer number (32160709).

Almost surely, 2^127330057 is an apocalyptic number.

It is an amenable number.

127330057 is a deficient number, since it is larger than the sum of its proper divisors (1312779).

127330057 is an equidigital number, since it uses as much as digits as its factorization.

127330057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312778.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 127330057 is about 11284.0620788792. The cubic root of 127330057 is about 503.0876364214.

Adding to 127330057 its reverse (750033721), we get a palindrome (877363778).

The spelling of 127330057 in words is "one hundred twenty-seven million, three hundred thirty thousand, fifty-seven".