127064997 has 16 divisors (see below), whose sum is σ = 189914880. Its totient is φ = 83958336.

The previous prime is 127064983. The next prime is 127064999. The reversal of 127064997 is 799460721.

It is not a de Polignac number, because 127064997 - 2⁷ = 127064869 is a prime.

It is a super-2 number, since 2×127064997² = 32291026925220018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127064999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17773 + ... + 23874.

It is an arithmetic number, because the mean of its divisors is an integer number (11869680).

Almost surely, 2^127064997 is an apocalyptic number.

It is an amenable number.

127064997 is a deficient number, since it is larger than the sum of its proper divisors (62849883).

127064997 is a wasteful number, since it uses less digits than its factorization.

127064997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41769 (or 41763 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 127064997 is about 11272.3110762612. The cubic root of 127064997 is about 502.7383053243.

Subtracting from 127064997 its product of nonzero digits (190512), we obtain a triangular number (126874485 = T₁₅₉₂₉).

The spelling of 127064997 in words is "one hundred twenty-seven million, sixty-four thousand, nine hundred ninety-seven".