109725005 has 8 divisors (see below), whose sum is σ = 141798552. Its totient is φ = 81027648.

The previous prime is 109725001. The next prime is 109725047. The reversal of 109725005 is 500527901.

It can be written as a sum of positive squares in 4 ways, for example, as 25140196 + 84584809 = 5014^2 + 9197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109725005 - 2² = 109725001 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 (109725001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843974 + ... + 844103.

It is an arithmetic number, because the mean of its divisors is an integer number (17724819).

Almost surely, 2^109725005 is an apocalyptic number.

It is an amenable number.

109725005 is a deficient number, since it is larger than the sum of its proper divisors (32073547).

109725005 is a wasteful number, since it uses less digits than its factorization.

109725005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688095.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 109725005 is about 10474.9704056861. The cubic root of 109725005 is about 478.7423747896.

The spelling of 109725005 in words is "one hundred nine million, seven hundred twenty-five thousand, five".