168750049 has 12 divisors (see below), whose sum is σ = 183287676. Its totient is φ = 155293632.

The previous prime is 168749951. The next prime is 168750053. The reversal of 168750049 is 940057861.

It can be written as a sum of positive squares in 6 ways, for example, as 68890000 + 99860049 = 8300^2 + 9993^2 .

It is a de Polignac number, because none of the positive numbers 2^k-168750049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168749993 and 168750020.

It is not an unprimeable number, because it can be changed into a prime (168750649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61699 + ... + 64375.

It is an arithmetic number, because the mean of its divisors is an integer number (15273973).

Almost surely, 2^168750049 is an apocalyptic number.

It is an amenable number.

168750049 is a deficient number, since it is larger than the sum of its proper divisors (14537627).

168750049 is a wasteful number, since it uses less digits than its factorization.

168750049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 168750049 is about 12990.3829427773. The cubic root of 168750049 is about 552.6047782827.

The spelling of 168750049 in words is "one hundred sixty-eight million, seven hundred fifty thousand, forty-nine".