68061541 has 4 divisors (see below), whose sum is σ = 68495212. Its totient is φ = 67627872.

The previous prime is 68061527. The next prime is 68061547. The reversal of 68061541 is 14516086.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18062500 + 49999041 = 4250^2 + 7071^2 .

It is a cyclic number.

It is not a de Polignac number, because 68061541 - 2⁵ = 68061509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68061547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216600 + ... + 216913.

It is an arithmetic number, because the mean of its divisors is an integer number (17123803).

Almost surely, 2^68061541 is an apocalyptic number.

It is an amenable number.

68061541 is a deficient number, since it is larger than the sum of its proper divisors (433671).

68061541 is a wasteful number, since it uses less digits than its factorization.

68061541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433670.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 68061541 is about 8249.9418785831. The cubic root of 68061541 is about 408.2886049947.

The spelling of 68061541 in words is "sixty-eight million, sixty-one thousand, five hundred forty-one".