168162403 has 2 divisors, whose sum is σ = 168162404. Its totient is φ = 168162402.

The previous prime is 168162389. The next prime is 168162409. The reversal of 168162403 is 304261861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168162403 - 2⁹ = 168161891 is a prime.

It is not a weakly prime, because it can be changed into another prime (168162409) 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 as a sum of consecutive naturals, namely, 84081201 + 84081202.

It is an arithmetic number, because the mean of its divisors is an integer number (84081202).

Almost surely, 2^168162403 is an apocalyptic number.

168162403 is a deficient number, since it is larger than the sum of its proper divisors (1).

168162403 is an equidigital number, since it uses as much as digits as its factorization.

168162403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 168162403 is about 12967.7447152541. The cubic root of 168162403 is about 551.9625786348.

The spelling of 168162403 in words is "one hundred sixty-eight million, one hundred sixty-two thousand, four hundred three".