127916497 has 4 divisors (see below), whose sum is σ = 128150896. Its totient is φ = 127682100.

The previous prime is 127916473. The next prime is 127916521. The reversal of 127916497 is 794619721.

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 an interprime number because it is at equal distance from previous prime (127916473) and next prime (127916521).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127916497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127913497) 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, 116379 + ... + 117472.

It is an arithmetic number, because the mean of its divisors is an integer number (32037724).

Almost surely, 2^127916497 is an apocalyptic number.

It is an amenable number.

127916497 is a deficient number, since it is larger than the sum of its proper divisors (234399).

127916497 is an equidigital number, since it uses as much as digits as its factorization.

127916497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234398.

The product of its digits is 190512, while the sum is 46.

The square root of 127916497 is about 11310.0175508263. The cubic root of 127916497 is about 503.8588052979.

The spelling of 127916497 in words is "one hundred twenty-seven million, nine hundred sixteen thousand, four hundred ninety-seven".