108725131 has 4 divisors (see below), whose sum is σ = 108753192. Its totient is φ = 108697072.

The previous prime is 108725077. The next prime is 108725167. The reversal of 108725131 is 131527801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131527801 = 233 ⋅564497.

It is a cyclic number.

It is not a de Polignac number, because 108725131 - 2⁷ = 108725003 is a prime.

It is a super-2 number, since 2×108725131² = 23642308221934322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108725131.

It is not an unprimeable number, because it can be changed into a prime (108725191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7066 + ... + 16351.

It is an arithmetic number, because the mean of its divisors is an integer number (27188298).

Almost surely, 2^108725131 is an apocalyptic number.

108725131 is a deficient number, since it is larger than the sum of its proper divisors (28061).

108725131 is an equidigital number, since it uses as much as digits as its factorization.

108725131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28060.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 108725131 is about 10427.1343618465. The cubic root of 108725131 is about 477.2837480982.

The spelling of 108725131 in words is "one hundred eight million, seven hundred twenty-five thousand, one hundred thirty-one".