109149628 has 36 divisors (see below), whose sum is σ = 228234160. Its totient is φ = 44738496.

The previous prime is 109149619. The next prime is 109149641. The reversal of 109149628 is 826941901.

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, 11128 + ... + 18496.

Almost surely, 2^109149628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109149628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114117080).

109149628 is an abundant number, since it is smaller than the sum of its proper divisors (119084532).

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

109149628 is a wasteful number, since it uses less digits than its factorization.

109149628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7426 (or 7401 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 109149628 is about 10447.4699329551. The cubic root of 109149628 is about 477.9040965840.

The spelling of 109149628 in words is "one hundred nine million, one hundred forty-nine thousand, six hundred twenty-eight".