127399994 has 8 divisors (see below), whose sum is σ = 193070388. Its totient is φ = 63043200.

The previous prime is 127399949. The next prime is 127400003. The reversal of 127399994 is 499993721.

127399994 = T₁₅₇₂ + T₁₅₇₃ + ... + T₁₆₆₈.

It can be written as a sum of positive squares in 2 ways, for example, as 124032769 + 3367225 = 11137^2 + 1835^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328157 + ... + 328544.

Almost surely, 2^127399994 is an apocalyptic number.

127399994 is a deficient number, since it is larger than the sum of its proper divisors (65670394).

127399994 is an equidigital number, since it uses as much as digits as its factorization.

127399994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656800.

The product of its digits is 1102248, while the sum is 53.

The square root of 127399994 is about 11287.1605818292. The cubic root of 127399994 is about 503.1797277967.

The spelling of 127399994 in words is "one hundred twenty-seven million, three hundred ninety-nine thousand, nine hundred ninety-four".