168743313 has 36 divisors (see below), whose sum is σ = 259616448. Its totient is φ = 105595920.

The previous prime is 168743303. The next prime is 168743329. The reversal of 168743313 is 313347861.

It is not a de Polignac number, because 168743313 - 2²² = 164549009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168743303) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 542428 + ... + 542738.

It is an arithmetic number, because the mean of its divisors is an integer number (7211568).

Almost surely, 2^168743313 is an apocalyptic number.

It is an amenable number.

168743313 is a deficient number, since it is larger than the sum of its proper divisors (90873135).

168743313 is a wasteful number, since it uses less digits than its factorization.

168743313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 500 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 168743313 is about 12990.1236714667. The cubic root of 168743313 is about 552.5974254052.

The spelling of 168743313 in words is "one hundred sixty-eight million, seven hundred forty-three thousand, three hundred thirteen".