109011725 has 24 divisors (see below), whose sum is σ = 142524360. Its totient is φ = 82584320.

The previous prime is 109011719. The next prime is 109011757. The reversal of 109011725 is 527110901.

It can be written as a sum of positive squares in 12 ways, for example, as 46063369 + 62948356 = 6787^2 + 7934^2 .

It is not a de Polignac number, because 109011725 - 2¹² = 109007629 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109011694 and 109011703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37007 + ... + 39843.

It is an arithmetic number, because the mean of its divisors is an integer number (5938515).

Almost surely, 2^109011725 is an apocalyptic number.

It is an amenable number.

109011725 is a deficient number, since it is larger than the sum of its proper divisors (33512635).

109011725 is a wasteful number, since it uses less digits than its factorization.

109011725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2924 counting only the distinct ones).

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

The square root of 109011725 is about 10440.8680194704. The cubic root of 109011725 is about 477.7027455135.

The spelling of 109011725 in words is "one hundred nine million, eleven thousand, seven hundred twenty-five".