168148045 has 16 divisors (see below), whose sum is σ = 219547440. Its totient is φ = 122886144.

The previous prime is 168148033. The next prime is 168148067. The reversal of 168148045 is 540841861.

It can be written as a sum of positive squares in 8 ways, for example, as 264196 + 167883849 = 514^2 + 12957^2 .

It is a cyclic number.

It is not a de Polignac number, because 168148045 - 2¹⁷ = 168016973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168147995 and 168148013.

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 in 15 ways as a sum of consecutive naturals, for example, 7030 + ... + 19639.

It is an arithmetic number, because the mean of its divisors is an integer number (13721715).

Almost surely, 2^168148045 is an apocalyptic number.

It is an amenable number.

168148045 is a deficient number, since it is larger than the sum of its proper divisors (51399395).

168148045 is a wasteful number, since it uses less digits than its factorization.

168148045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26784.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 168148045 is about 12967.1910990777. The cubic root of 168148045 is about 551.9468690110.

The spelling of 168148045 in words is "one hundred sixty-eight million, one hundred forty-eight thousand, forty-five".