68054139 has 12 divisors (see below), whose sum is σ = 99685872. Its totient is φ = 44730000.

The previous prime is 68054131. The next prime is 68054153. The reversal of 68054139 is 93145086.

68054139 is a `hidden beast` number, since 6 + 80 + 541 + 39 = 666.

It is not a de Polignac number, because 68054139 - 2³ = 68054131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68054131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52612 + ... + 53889.

It is an arithmetic number, because the mean of its divisors is an integer number (8307156).

Almost surely, 2^68054139 is an apocalyptic number.

68054139 is a deficient number, since it is larger than the sum of its proper divisors (31631733).

68054139 is a wasteful number, since it uses less digits than its factorization.

68054139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106578 (or 106575 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 68054139 is about 8249.4932571643. The cubic root of 68054139 is about 408.2738033815.

The spelling of 68054139 in words is "sixty-eight million, fifty-four thousand, one hundred thirty-nine".