68094515 has 4 divisors (see below), whose sum is σ = 81713424. Its totient is φ = 54475608.

The previous prime is 68094491. The next prime is 68094539. The reversal of 68094515 is 51549086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51549086 = 2 ⋅25774543.

It is an interprime number because it is at equal distance from previous prime (68094491) and next prime (68094539).

It is a cyclic number.

It is not a de Polignac number, because 68094515 - 2⁶ = 68094451 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 6809447 + ... + 6809456.

It is an arithmetic number, because the mean of its divisors is an integer number (20428356).

Almost surely, 2^68094515 is an apocalyptic number.

68094515 is a deficient number, since it is larger than the sum of its proper divisors (13618909).

68094515 is a wasteful number, since it uses less digits than its factorization.

68094515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13618908.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 68094515 is about 8251.9400749157. The cubic root of 68094515 is about 408.3545293269.

The spelling of 68094515 in words is "sixty-eight million, ninety-four thousand, five hundred fifteen".