104721725 has 6 divisors (see below), whose sum is σ = 129854970. Its totient is φ = 83777360.

The previous prime is 104721709. The next prime is 104721731. The reversal of 104721725 is 527127401.

It can be written as a sum of positive squares in 3 ways, for example, as 293764 + 104427961 = 542^2 + 10219^2 .

It is not a de Polignac number, because 104721725 - 2⁴ = 104721709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2094410 + ... + 2094459.

It is an arithmetic number, because the mean of its divisors is an integer number (21642495).

Almost surely, 2^104721725 is an apocalyptic number.

It is an amenable number.

104721725 is a deficient number, since it is larger than the sum of its proper divisors (25133245).

104721725 is an equidigital number, since it uses as much as digits as its factorization.

104721725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188879 (or 4188874 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 104721725 is about 10233.3633278605. The cubic root of 104721725 is about 471.3522622343.

The spelling of 104721725 in words is "one hundred four million, seven hundred twenty-one thousand, seven hundred twenty-five".