101409725 has 6 divisors (see below), whose sum is σ = 125748090. Its totient is φ = 81127760.

The previous prime is 101409713. The next prime is 101409733. The reversal of 101409725 is 527904101.

It can be written as a sum of positive squares in 3 ways, for example, as 24964 + 101384761 = 158^2 + 10069^2 .

It is not a de Polignac number, because 101409725 - 2⁶ = 101409661 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, 2028170 + ... + 2028219.

It is an arithmetic number, because the mean of its divisors is an integer number (20958015).

Almost surely, 2^101409725 is an apocalyptic number.

It is an amenable number.

101409725 is a deficient number, since it is larger than the sum of its proper divisors (24338365).

101409725 is an equidigital number, since it uses as much as digits as its factorization.

101409725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056399 (or 4056394 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 101409725 is about 10070.2395701393. The cubic root of 101409725 is about 466.3298348871.

The spelling of 101409725 in words is "one hundred one million, four hundred nine thousand, seven hundred twenty-five".