109721748 has 24 divisors (see below), whose sum is σ = 256389952. Its totient is φ = 36520704.

The previous prime is 109721719. The next prime is 109721779. The reversal of 109721748 is 847127901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436 + ... + 15012.

Almost surely, 2^109721748 is an apocalyptic number.

It is an amenable number.

109721748 is an abundant number, since it is smaller than the sum of its proper divisors (146668204).

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

109721748 is a wasteful number, since it uses less digits than its factorization.

109721748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13311 (or 13309 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 109721748 is about 10474.8149386994. The cubic root of 109721748 is about 478.7376378586.

It can be divided in two parts, 10972 and 1748, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 109721748 in words is "one hundred nine million, seven hundred twenty-one thousand, seven hundred forty-eight".