109245028 has 12 divisors (see below), whose sum is σ = 191722860. Its totient is φ = 54467072.

The previous prime is 109245007. The next prime is 109245047. The reversal of 109245028 is 820542901.

It can be written as a sum of positive squares in 2 ways, for example, as 15697444 + 93547584 = 3962^2 + 9672^2 .

It is a super-2 number, since 2×109245028² = 23868952285441568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37273 + ... + 40096.

It is an arithmetic number, because the mean of its divisors is an integer number (15976905).

Almost surely, 2^109245028 is an apocalyptic number.

It is an amenable number.

109245028 is a deficient number, since it is larger than the sum of its proper divisors (82477832).

109245028 is a wasteful number, since it uses less digits than its factorization.

109245028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77726 (or 77724 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 109245028 is about 10452.0346344623. The cubic root of 109245028 is about 478.0432901393.

Adding to 109245028 its reverse (820542901), we get a palindrome (929787929).

The spelling of 109245028 in words is "one hundred nine million, two hundred forty-five thousand, twenty-eight".