168332145 has 32 divisors (see below), whose sum is σ = 277627392. Its totient is φ = 87048192.

The previous prime is 168332141. The next prime is 168332149. The reversal of 168332145 is 541233861.

It is an interprime number because it is at equal distance from previous prime (168332141) and next prime (168332149).

It is not a de Polignac number, because 168332145 - 2² = 168332141 is a prime.

It is a super-2 number, since 2×168332145² = 56671422080602050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168332141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78609 + ... + 80721.

It is an arithmetic number, because the mean of its divisors is an integer number (8675856).

Almost surely, 2^168332145 is an apocalyptic number.

168332145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168332145 is a deficient number, since it is larger than the sum of its proper divisors (109295247).

168332145 is a wasteful number, since it uses less digits than its factorization.

168332145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281.

The product of its digits is 17280, while the sum is 33.

The square root of 168332145 is about 12974.2878417276. The cubic root of 168332145 is about 552.1482319562.

The spelling of 168332145 in words is "one hundred sixty-eight million, three hundred thirty-two thousand, one hundred forty-five".