127645747 has 2 divisors, whose sum is σ = 127645748. Its totient is φ = 127645746.

The previous prime is 127645711. The next prime is 127645753. The reversal of 127645747 is 747546721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127645747 - 2⁷ = 127645619 is a prime.

It is not a weakly prime, because it can be changed into another prime (127645247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63822873 + 63822874.

It is an arithmetic number, because the mean of its divisors is an integer number (63822874).

Almost surely, 2^127645747 is an apocalyptic number.

127645747 is a deficient number, since it is larger than the sum of its proper divisors (1).

127645747 is an equidigital number, since it uses as much as digits as its factorization.

127645747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 329280, while the sum is 43.

The square root of 127645747 is about 11298.0417329730. The cubic root of 127645747 is about 503.5030624567.

The spelling of 127645747 in words is "one hundred twenty-seven million, six hundred forty-five thousand, seven hundred forty-seven".