181125716 has 6 divisors (see below), whose sum is σ = 316970010. Its totient is φ = 90562856.

The previous prime is 181125673. The next prime is 181125731. The reversal of 181125716 is 617521181.

It can be written as a sum of positive squares in only one way, i.e., 181010116 + 115600 = 13454^2 + 340^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22640711 + ... + 22640718.

It is an arithmetic number, because the mean of its divisors is an integer number (52828335).

Almost surely, 2^181125716 is an apocalyptic number.

It is an amenable number.

181125716 is a deficient number, since it is larger than the sum of its proper divisors (135844294).

181125716 is a wasteful number, since it uses less digits than its factorization.

181125716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45281433 (or 45281431 counting only the distinct ones).

The product of its digits is 3360, while the sum is 32.

The square root of 181125716 is about 13458.2954344152. The cubic root of 181125716 is about 565.7962157661.

Adding to 181125716 its reverse (617521181), we get a palindrome (798646897).

The spelling of 181125716 in words is "one hundred eighty-one million, one hundred twenty-five thousand, seven hundred sixteen".