109128763 has 4 divisors (see below), whose sum is σ = 115548120. Its totient is φ = 102709408.

The previous prime is 109128751. The next prime is 109128793. The reversal of 109128763 is 367821901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 367821901 = 101 ⋅3641801.

It is a cyclic number.

It is not a de Polignac number, because 109128763 - 2⁹ = 109128251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109128703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3209653 + ... + 3209686.

It is an arithmetic number, because the mean of its divisors is an integer number (28887030).

Almost surely, 2^109128763 is an apocalyptic number.

109128763 is a deficient number, since it is larger than the sum of its proper divisors (6419357).

109128763 is an equidigital number, since it uses as much as digits as its factorization.

109128763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419356.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 109128763 is about 10446.4713181055. The cubic root of 109128763 is about 477.8736426570.

The spelling of 109128763 in words is "one hundred nine million, one hundred twenty-eight thousand, seven hundred sixty-three".