168994052 has 6 divisors (see below), whose sum is σ = 295739598. Its totient is φ = 84497024.

The previous prime is 168994043. The next prime is 168994097. The reversal of 168994052 is 250499861.

It can be written as a sum of positive squares in only one way, i.e., 154355776 + 14638276 = 12424^2 + 3826^2 .

It is a super-2 number, since 2×168994052² = 57117979222757408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168993994 and 168994012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21124253 + ... + 21124260.

It is an arithmetic number, because the mean of its divisors is an integer number (49289933).

Almost surely, 2^168994052 is an apocalyptic number.

It is an amenable number.

168994052 is a deficient number, since it is larger than the sum of its proper divisors (126745546).

168994052 is a wasteful number, since it uses less digits than its factorization.

168994052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42248517 (or 42248515 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 168994052 is about 12999.7712287563. The cubic root of 168994052 is about 552.8709950684.

The spelling of 168994052 in words is "one hundred sixty-eight million, nine hundred ninety-four thousand, fifty-two".