168203151 has 24 divisors (see below), whose sum is σ = 258161904. Its totient is φ = 105166080.

The previous prime is 168203137. The next prime is 168203153. The reversal of 168203151 is 151302861.

It is a de Polignac number, because none of the positive numbers 2^k-168203151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168203153) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 45181 + ... + 48761.

It is an arithmetic number, because the mean of its divisors is an integer number (10756746).

Almost surely, 2^168203151 is an apocalyptic number.

168203151 is a deficient number, since it is larger than the sum of its proper divisors (89958753).

168203151 is a wasteful number, since it uses less digits than its factorization.

168203151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911 (or 3908 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 168203151 is about 12969.3157491057. The cubic root of 168203151 is about 552.0071576734.

The spelling of 168203151 in words is "one hundred sixty-eight million, two hundred three thousand, one hundred fifty-one".