168150406 has 4 divisors (see below), whose sum is σ = 252225612. Its totient is φ = 84075202.

The previous prime is 168150391. The next prime is 168150407. The reversal of 168150406 is 604051861.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168150407) 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 as a sum of consecutive naturals, namely, 42037600 + ... + 42037603.

It is an arithmetic number, because the mean of its divisors is an integer number (63056403).

Almost surely, 2^168150406 is an apocalyptic number.

168150406 is a deficient number, since it is larger than the sum of its proper divisors (84075206).

168150406 is an equidigital number, since it uses as much as digits as its factorization.

168150406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84075205.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 168150406 is about 12967.2821362073. The cubic root of 168150406 is about 551.9494523307.

The spelling of 168150406 in words is "one hundred sixty-eight million, one hundred fifty thousand, four hundred six".