127194197 has 8 divisors (see below), whose sum is σ = 140681016. Its totient is φ = 114236352.

The previous prime is 127194191. The next prime is 127194239. The reversal of 127194197 is 791491721.

It can be written as a sum of positive squares in 4 ways, for example, as 1552516 + 125641681 = 1246^2 + 11209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127194197 - 2⁴ = 127194181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127194191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131738 + ... + 132699.

It is an arithmetic number, because the mean of its divisors is an integer number (17585127).

Almost surely, 2^127194197 is an apocalyptic number.

It is an amenable number.

127194197 is a deficient number, since it is larger than the sum of its proper divisors (13486819).

127194197 is a wasteful number, since it uses less digits than its factorization.

127194197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264487.

The product of its digits is 31752, while the sum is 41.

The square root of 127194197 is about 11278.0404769623. The cubic root of 127194197 is about 502.9086427840.

The spelling of 127194197 in words is "one hundred twenty-seven million, one hundred ninety-four thousand, one hundred ninety-seven".