127561994 has 24 divisors (see below), whose sum is σ = 227766528. Its totient is φ = 53396280.

The previous prime is 127561963. The next prime is 127561997. The reversal of 127561994 is 499165721.

It is not an unprimeable number, because it can be changed into a prime (127561997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10922 + ... + 19349.

It is an arithmetic number, because the mean of its divisors is an integer number (9490272).

Almost surely, 2^127561994 is an apocalyptic number.

127561994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

127561994 is a deficient number, since it is larger than the sum of its proper divisors (100204534).

127561994 is a wasteful number, since it uses less digits than its factorization.

127561994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30330 (or 30323 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 127561994 is about 11294.3345974874. The cubic root of 127561994 is about 503.3929161614.

The spelling of 127561994 in words is "one hundred twenty-seven million, five hundred sixty-one thousand, nine hundred ninety-four".