109271438 has 4 divisors (see below), whose sum is σ = 163907160. Its totient is φ = 54635718.

The previous prime is 109271417. The next prime is 109271443. The reversal of 109271438 is 834172901.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 109271398 and 109271407.

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 as a sum of consecutive naturals, namely, 27317858 + ... + 27317861.

It is an arithmetic number, because the mean of its divisors is an integer number (40976790).

Almost surely, 2^109271438 is an apocalyptic number.

109271438 is a deficient number, since it is larger than the sum of its proper divisors (54635722).

109271438 is an equidigital number, since it uses as much as digits as its factorization.

109271438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54635721.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 109271438 is about 10453.2979484945. The cubic root of 109271438 is about 478.0818093784.

The spelling of 109271438 in words is "one hundred nine million, two hundred seventy-one thousand, four hundred thirty-eight".