109903572 has 36 divisors (see below), whose sum is σ = 294155316. Its totient is φ = 34479360.

The previous prime is 109903567. The next prime is 109903597. The reversal of 109903572 is 275309901.

It can be written as a sum of positive squares in 2 ways, for example, as 32216976 + 77686596 = 5676^2 + 8814^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 89179 + ... + 90402.

It is an arithmetic number, because the mean of its divisors is an integer number (8170981).

Almost surely, 2^109903572 is an apocalyptic number.

109903572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

109903572 is an abundant number, since it is smaller than the sum of its proper divisors (184251744).

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

109903572 is a wasteful number, since it uses less digits than its factorization.

109903572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179608 (or 179603 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 109903572 is about 10483.4904492731. The cubic root of 109903572 is about 479.0019365830.

The spelling of 109903572 in words is "one hundred nine million, nine hundred three thousand, five hundred seventy-two".