113749925 has 18 divisors (see below), whose sum is σ = 144203382. Its totient is φ = 88978240.

The previous prime is 113749891. The next prime is 113749939. The reversal of 113749925 is 529947311.

It can be written as a sum of positive squares in 9 ways, for example, as 1940449 + 111809476 = 1393^2 + 10574^2 .

It is not a de Polignac number, because 113749925 - 2²⁰ = 112701349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 388079 + ... + 388371.

It is an arithmetic number, because the mean of its divisors is an integer number (8011299).

Almost surely, 2^113749925 is an apocalyptic number.

It is an amenable number.

113749925 is a deficient number, since it is larger than the sum of its proper divisors (30453457).

113749925 is an frugal number, since it uses more digits than its factorization.

113749925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 351 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 113749925 is about 10665.3609877960. The cubic root of 113749925 is about 484.5259476824.

The spelling of 113749925 in words is "one hundred thirteen million, seven hundred forty-nine thousand, nine hundred twenty-five".