127994957 has 4 divisors (see below), whose sum is σ = 128447520. Its totient is φ = 127542396.

The previous prime is 127994929. The next prime is 127994981. The reversal of 127994957 is 759499721.

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 a cyclic number.

It is not a de Polignac number, because 127994957 - 2¹⁴ = 127978573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127994899 and 127994908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127994917) 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, 225857 + ... + 226422.

It is an arithmetic number, because the mean of its divisors is an integer number (32111880).

Almost surely, 2^127994957 is an apocalyptic number.

It is an amenable number.

127994957 is a deficient number, since it is larger than the sum of its proper divisors (452563).

127994957 is an equidigital number, since it uses as much as digits as its factorization.

127994957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452562.

The product of its digits is 1428840, while the sum is 53.

The square root of 127994957 is about 11313.4856255709. The cubic root of 127994957 is about 503.9618013483.

The spelling of 127994957 in words is "one hundred twenty-seven million, nine hundred ninety-four thousand, nine hundred fifty-seven".