127891092 has 48 divisors (see below), whose sum is σ = 350268800. Its totient is φ = 35551872.

The previous prime is 127891091. The next prime is 127891121. The reversal of 127891092 is 290198721.

It is a super-2 number, since 2×127891092² = 32712262825904928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127891092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127891091) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17467 + ... + 23682.

Almost surely, 2^127891092 is an apocalyptic number.

127891092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127891092 is an abundant number, since it is smaller than the sum of its proper divisors (222377708).

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

127891092 is a wasteful number, since it uses less digits than its factorization.

127891092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41200 (or 41198 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 127891092 is about 11308.8943756673. The cubic root of 127891092 is about 503.8254466075.

The spelling of 127891092 in words is "one hundred twenty-seven million, eight hundred ninety-one thousand, ninety-two".