109271388 has 12 divisors (see below), whose sum is σ = 254966600. Its totient is φ = 36423792.

The previous prime is 109271353. The next prime is 109271401. The reversal of 109271388 is 883172901.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4552963 + ... + 4552986.

Almost surely, 2^109271388 is an apocalyptic number.

It is an amenable number.

109271388 is an abundant number, since it is smaller than the sum of its proper divisors (145695212).

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

109271388 is a wasteful number, since it uses less digits than its factorization.

109271388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9105956 (or 9105954 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 109271388 is about 10453.2955569045. The cubic root of 109271388 is about 478.0817364587.

The spelling of 109271388 in words is "one hundred nine million, two hundred seventy-one thousand, three hundred eighty-eight".