168349274 has 4 divisors (see below), whose sum is σ = 252523914. Its totient is φ = 84174636.

The previous prime is 168349261. The next prime is 168349319. The reversal of 168349274 is 472943861.

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., 158583649 + 9765625 = 12593^2 + 3125^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42087317 + ... + 42087320.

Almost surely, 2^168349274 is an apocalyptic number.

168349274 is a deficient number, since it is larger than the sum of its proper divisors (84174640).

168349274 is an equidigital number, since it uses as much as digits as its factorization.

168349274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84174639.

The product of its digits is 290304, while the sum is 44.

The square root of 168349274 is about 12974.9479382385. The cubic root of 168349274 is about 552.1669596652.

The spelling of 168349274 in words is "one hundred sixty-eight million, three hundred forty-nine thousand, two hundred seventy-four".