68540361 has 8 divisors (see below), whose sum is σ = 91481760. Its totient is φ = 45646272.

The previous prime is 68540341. The next prime is 68540363. The reversal of 68540361 is 16304586.

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

It is not a de Polignac number, because 68540361 - 2¹⁰ = 68539337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68540363) 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, 8295 + ... + 14348.

It is an arithmetic number, because the mean of its divisors is an integer number (11435220).

Almost surely, 2^68540361 is an apocalyptic number.

It is an amenable number.

68540361 is a deficient number, since it is larger than the sum of its proper divisors (22941399).

68540361 is a wasteful number, since it uses less digits than its factorization.

68540361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23655.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 68540361 is about 8278.9106167418. The cubic root of 68540361 is about 409.2438193677.

The spelling of 68540361 in words is "sixty-eight million, five hundred forty thousand, three hundred sixty-one".