139286067 has 8 divisors (see below), whose sum is σ = 189219024. Its totient is φ = 91105248.

The previous prime is 139286057. The next prime is 139286071. The reversal of 139286067 is 760682931.

It is a happy number.

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

It is not a de Polignac number, because 139286067 - 2⁶ = 139286003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139286027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437848 + ... + 438165.

It is an arithmetic number, because the mean of its divisors is an integer number (23652378).

Almost surely, 2^139286067 is an apocalyptic number.

139286067 is a deficient number, since it is larger than the sum of its proper divisors (49932957).

139286067 is an equidigital number, since it uses as much as digits as its factorization.

139286067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876069.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 139286067 is about 11801.9518301000. The cubic root of 139286067 is about 518.3652644062.

The spelling of 139286067 in words is "one hundred thirty-nine million, two hundred eighty-six thousand, sixty-seven".