127216497 has 4 divisors (see below), whose sum is σ = 169622000. Its totient is φ = 84810996.

The previous prime is 127216487. The next prime is 127216501. The reversal of 127216497 is 794612721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 127216497 - 2²³ = 118827889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127216487) 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, 21202747 + ... + 21202752.

It is an arithmetic number, because the mean of its divisors is an integer number (42405500).

Almost surely, 2^127216497 is an apocalyptic number.

It is an amenable number.

127216497 is a deficient number, since it is larger than the sum of its proper divisors (42405503).

127216497 is an equidigital number, since it uses as much as digits as its factorization.

127216497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42405502.

The product of its digits is 42336, while the sum is 39.

The square root of 127216497 is about 11279.0290805548. The cubic root of 127216497 is about 502.9380314607.

The spelling of 127216497 in words is "one hundred twenty-seven million, two hundred sixteen thousand, four hundred ninety-seven".