68348155 has 4 divisors (see below), whose sum is σ = 82017792. Its totient is φ = 54678520.

The previous prime is 68348153. The next prime is 68348171. The reversal of 68348155 is 55184386.

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

It is not a de Polignac number, because 68348155 - 2¹ = 68348153 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68348153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6834811 + ... + 6834820.

It is an arithmetic number, because the mean of its divisors is an integer number (20504448).

Almost surely, 2^68348155 is an apocalyptic number.

68348155 is a deficient number, since it is larger than the sum of its proper divisors (13669637).

68348155 is a wasteful number, since it uses less digits than its factorization.

68348155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13669636.

The product of its digits is 115200, while the sum is 40.

The square root of 68348155 is about 8267.2942974107. The cubic root of 68348155 is about 408.8609171944.

The spelling of 68348155 in words is "sixty-eight million, three hundred forty-eight thousand, one hundred fifty-five".