68135545 has 8 divisors (see below), whose sum is σ = 85317696. Its totient is φ = 52138416.

The previous prime is 68135533. The next prime is 68135603. The reversal of 68135545 is 54553186.

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

It is a cyclic number.

It is not a de Polignac number, because 68135545 - 2⁵ = 68135513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296127 + ... + 296356.

It is an arithmetic number, because the mean of its divisors is an integer number (10664712).

Almost surely, 2^68135545 is an apocalyptic number.

It is an amenable number.

68135545 is a deficient number, since it is larger than the sum of its proper divisors (17182151).

68135545 is a wasteful number, since it uses less digits than its factorization.

68135545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592511.

The product of its digits is 72000, while the sum is 37.

The square root of 68135545 is about 8254.4257825726. The cubic root of 68135545 is about 408.4365301669.

The spelling of 68135545 in words is "sixty-eight million, one hundred thirty-five thousand, five hundred forty-five".