127640199 has 16 divisors (see below), whose sum is σ = 181859040. Its totient is φ = 79349760.

The previous prime is 127640197. The next prime is 127640209. The reversal of 127640199 is 991046721.

It is not a de Polignac number, because 127640199 - 2¹ = 127640197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127640197) 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, 5922 + ... + 17039.

It is an arithmetic number, because the mean of its divisors is an integer number (11366190).

Almost surely, 2^127640199 is an apocalyptic number.

127640199 is a deficient number, since it is larger than the sum of its proper divisors (54218841).

127640199 is a wasteful number, since it uses less digits than its factorization.

127640199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23090.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 127640199 is about 11297.7962010297. The cubic root of 127640199 is about 503.4957675917.

The spelling of 127640199 in words is "one hundred twenty-seven million, six hundred forty thousand, one hundred ninety-nine".