68191226 has 4 divisors (see below), whose sum is σ = 102286842. Its totient is φ = 34095612.

The previous prime is 68191181. The next prime is 68191243. The reversal of 68191226 is 62219186.

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., 68079001 + 112225 = 8251^2 + 335^2 .

It is an unprimeable number.

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, 17047805 + ... + 17047808.

Almost surely, 2^68191226 is an apocalyptic number.

68191226 is a deficient number, since it is larger than the sum of its proper divisors (34095616).

68191226 is a wasteful number, since it uses less digits than its factorization.

68191226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34095615.

The product of its digits is 10368, while the sum is 35.

The square root of 68191226 is about 8257.7978904790. The cubic root of 68191226 is about 408.5477592482.

The spelling of 68191226 in words is "sixty-eight million, one hundred ninety-one thousand, two hundred twenty-six".