127564967 has 2 divisors, whose sum is σ = 127564968. Its totient is φ = 127564966.

The previous prime is 127564963. The next prime is 127565033. The reversal of 127564967 is 769465721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127564967 - 2² = 127564963 is a prime.

It is a super-2 number, since 2×127564967² = 32545641611422178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127564963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63782483 + 63782484.

It is an arithmetic number, because the mean of its divisors is an integer number (63782484).

Almost surely, 2^127564967 is an apocalyptic number.

127564967 is a deficient number, since it is larger than the sum of its proper divisors (1).

127564967 is an equidigital number, since it uses as much as digits as its factorization.

127564967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 127564967 is about 11294.4662113798. The cubic root of 127564967 is about 503.3968268756.

The spelling of 127564967 in words is "one hundred twenty-seven million, five hundred sixty-four thousand, nine hundred sixty-seven".