109561752 has 72 divisors (see below), whose sum is σ = 313454700. Its totient is φ = 34476192.

The previous prime is 109561729. The next prime is 109561801. The reversal of 109561752 is 257165901.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 387003 + ... + 387285.

Almost surely, 2^109561752 is an apocalyptic number.

109561752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109561752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156727350).

109561752 is an abundant number, since it is smaller than the sum of its proper divisors (203892948).

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

109561752 is a wasteful number, since it uses less digits than its factorization.

109561752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 109561752 is about 10467.1749770413. The cubic root of 109561752 is about 478.5048266203.

The spelling of 109561752 in words is "one hundred nine million, five hundred sixty-one thousand, seven hundred fifty-two".