68224135 has 16 divisors (see below), whose sum is σ = 93817152. Its totient is φ = 46656000.

The previous prime is 68224133. The next prime is 68224147. The reversal of 68224135 is 53142286.

It is not a de Polignac number, because 68224135 - 2¹ = 68224133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68224097 and 68224106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68224133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11605 + ... + 16465.

It is an arithmetic number, because the mean of its divisors is an integer number (5863572).

Almost surely, 2^68224135 is an apocalyptic number.

68224135 is a deficient number, since it is larger than the sum of its proper divisors (25593017).

68224135 is a wasteful number, since it uses less digits than its factorization.

68224135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

The product of its digits is 11520, while the sum is 31.

The square root of 68224135 is about 8259.7902515742. The cubic root of 68224135 is about 408.6134702237.

It can be divided in two parts, 682241 and 35, that added together give a square (682276 = 826²).

The spelling of 68224135 in words is "sixty-eight million, two hundred twenty-four thousand, one hundred thirty-five".