109213288 has 8 divisors (see below), whose sum is σ = 204774930. Its totient is φ = 54606640.

The previous prime is 109213243. The next prime is 109213301. The reversal of 109213288 is 882312901.

It can be written as a sum of positive squares in only one way, i.e., 80676324 + 28536964 = 8982^2 + 5342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6825823 + ... + 6825838.

Almost surely, 2^109213288 is an apocalyptic number.

It is an amenable number.

109213288 is a deficient number, since it is larger than the sum of its proper divisors (95561642).

109213288 is a wasteful number, since it uses less digits than its factorization.

109213288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651667 (or 13651663 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 109213288 is about 10450.5161595014. The cubic root of 109213288 is about 477.9969888293.

The spelling of 109213288 in words is "one hundred nine million, two hundred thirteen thousand, two hundred eighty-eight".