109725101 has 4 divisors (see below), whose sum is σ = 109922652. Its totient is φ = 109527552.

The previous prime is 109725097. The next prime is 109725103. The reversal of 109725101 is 101527901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101527901 = 113 ⋅898477.

It can be written as a sum of positive squares in 2 ways, for example, as 33582025 + 76143076 = 5795^2 + 8726^2 .

It is a cyclic number.

It is not a de Polignac number, because 109725101 - 2² = 109725097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109725103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97940 + ... + 99053.

It is an arithmetic number, because the mean of its divisors is an integer number (27480663).

Almost surely, 2^109725101 is an apocalyptic number.

It is an amenable number.

109725101 is a deficient number, since it is larger than the sum of its proper divisors (197551).

109725101 is an equidigital number, since it uses as much as digits as its factorization.

109725101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197550.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 109725101 is about 10474.9749880370. The cubic root of 109725101 is about 478.7425144092.

The spelling of 109725101 in words is "one hundred nine million, seven hundred twenty-five thousand, one hundred one".