168254146 has 4 divisors (see below), whose sum is σ = 252381222. Its totient is φ = 84127072.

The previous prime is 168254137. The next prime is 168254209. The reversal of 168254146 is 641452861.

168254146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 133148521 + 35105625 = 11539^2 + 5925^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42063535 + ... + 42063538.

Almost surely, 2^168254146 is an apocalyptic number.

168254146 is a deficient number, since it is larger than the sum of its proper divisors (84127076).

168254146 is an equidigital number, since it uses as much as digits as its factorization.

168254146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84127075.

The product of its digits is 46080, while the sum is 37.

The square root of 168254146 is about 12971.2815866436. The cubic root of 168254146 is about 552.0629369708.

The spelling of 168254146 in words is "one hundred sixty-eight million, two hundred fifty-four thousand, one hundred forty-six".