168426725 has 12 divisors (see below), whose sum is σ = 209036100. Its totient is φ = 134620800.

The previous prime is 168426721. The next prime is 168426737. The reversal of 168426725 is 527624861.

It can be written as a sum of positive squares in 6 ways, for example, as 516961 + 167909764 = 719^2 + 12958^2 .

It is not a de Polignac number, because 168426725 - 2² = 168426721 is a prime.

It is a super-3 number, since 3×168426725³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168426721) 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, 34751 + ... + 39299.

It is an arithmetic number, because the mean of its divisors is an integer number (17419675).

Almost surely, 2^168426725 is an apocalyptic number.

It is an amenable number.

168426725 is a deficient number, since it is larger than the sum of its proper divisors (40609375).

168426725 is a wasteful number, since it uses less digits than its factorization.

168426725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040 (or 6035 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 168426725 is about 12977.9322312917. The cubic root of 168426725 is about 552.2516235815.

The spelling of 168426725 in words is "one hundred sixty-eight million, four hundred twenty-six thousand, seven hundred twenty-five".