68172254 has 4 divisors (see below), whose sum is σ = 102258384. Its totient is φ = 34086126.

The previous prime is 68172233. The next prime is 68172259. The reversal of 68172254 is 45227186.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68172259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17043062 + ... + 17043065.

It is an arithmetic number, because the mean of its divisors is an integer number (25564596).

Almost surely, 2^68172254 is an apocalyptic number.

68172254 is a deficient number, since it is larger than the sum of its proper divisors (34086130).

68172254 is a wasteful number, since it uses less digits than its factorization.

68172254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34086129.

The product of its digits is 26880, while the sum is 35.

The square root of 68172254 is about 8256.6490781672. The cubic root of 68172254 is about 408.5098673400.

The spelling of 68172254 in words is "sixty-eight million, one hundred seventy-two thousand, two hundred fifty-four".