109128098 has 4 divisors (see below), whose sum is σ = 163692150. Its totient is φ = 54564048.

The previous prime is 109128079. The next prime is 109128119. The reversal of 109128098 is 890821901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 108722329 + 405769 = 10427^2 + 637^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27282023 + ... + 27282026.

Almost surely, 2^109128098 is an apocalyptic number.

109128098 is a deficient number, since it is larger than the sum of its proper divisors (54564052).

109128098 is an equidigital number, since it uses as much as digits as its factorization.

109128098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54564051.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 109128098 is about 10446.4394891274. The cubic root of 109128098 is about 477.8726719791.

Adding to 109128098 its reverse (890821901), we get a palindrome (999949999).

The spelling of 109128098 in words is "one hundred nine million, one hundred twenty-eight thousand, ninety-eight".