168013403 has 2 divisors, whose sum is σ = 168013404. Its totient is φ = 168013402.

The previous prime is 168013381. The next prime is 168013423. The reversal of 168013403 is 304310861.

168013403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168013403 - 2¹² = 168009307 is a prime.

It is not a weakly prime, because it can be changed into another prime (168013423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84006701 + 84006702.

It is an arithmetic number, because the mean of its divisors is an integer number (84006702).

Almost surely, 2^168013403 is an apocalyptic number.

168013403 is a deficient number, since it is larger than the sum of its proper divisors (1).

168013403 is an equidigital number, since it uses as much as digits as its factorization.

168013403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 168013403 is about 12961.9984184538. The cubic root of 168013403 is about 551.7995086403.

The spelling of 168013403 in words is "one hundred sixty-eight million, thirteen thousand, four hundred three".