127399812 has 24 divisors (see below), whose sum is σ = 297460800. Its totient is φ = 42438816.

The previous prime is 127399793. The next prime is 127399837. The reversal of 127399812 is 218993721.

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 7 ways as a sum of consecutive naturals, for example, 24889 + ... + 29567.

It is an arithmetic number, because the mean of its divisors is an integer number (12394200).

Almost surely, 2^127399812 is an apocalyptic number.

127399812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127399812 is an abundant number, since it is smaller than the sum of its proper divisors (170060988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127399812 is a wasteful number, since it uses less digits than its factorization.

127399812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955 (or 6953 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 127399812 is about 11287.1525195684. The cubic root of 127399812 is about 503.1794881872.

The spelling of 127399812 in words is "one hundred twenty-seven million, three hundred ninety-nine thousand, eight hundred twelve".