168450545 has 8 divisors (see below), whose sum is σ = 202485096. Its totient is φ = 134530816.

The previous prime is 168450539. The next prime is 168450587. The reversal of 168450545 is 545054861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72880369 + 95570176 = 8537^2 + 9776^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168450545 - 2¹⁸ = 168188401 is a prime.

It is a super-2 number, since 2×168450545² = 56751172221594050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168450499 and 168450508.

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 in 7 ways as a sum of consecutive naturals, for example, 25442 + ... + 31371.

It is an arithmetic number, because the mean of its divisors is an integer number (25310637).

Almost surely, 2^168450545 is an apocalyptic number.

It is an amenable number.

168450545 is a deficient number, since it is larger than the sum of its proper divisors (34034551).

168450545 is an equidigital number, since it uses as much as digits as its factorization.

168450545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57411.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 168450545 is about 12978.8499105275. The cubic root of 168450545 is about 552.2776566900.

The spelling of 168450545 in words is "one hundred sixty-eight million, four hundred fifty thousand, five hundred forty-five".