68744121 has 8 divisors (see below), whose sum is σ = 91986144. Its totient is φ = 45665760.

The previous prime is 68744119. The next prime is 68744129. The reversal of 68744121 is 12144786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68744121 - 2¹ = 68744119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68744129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39931 + ... + 41616.

It is an arithmetic number, because the mean of its divisors is an integer number (11498268).

Almost surely, 2^68744121 is an apocalyptic number.

It is an amenable number.

68744121 is a deficient number, since it is larger than the sum of its proper divisors (23242023).

68744121 is a wasteful number, since it uses less digits than its factorization.

68744121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81831.

The product of its digits is 10752, while the sum is 33.

The square root of 68744121 is about 8291.2074512703. The cubic root of 68744121 is about 409.6489579014.

The spelling of 68744121 in words is "sixty-eight million, seven hundred forty-four thousand, one hundred twenty-one".