139081319 has 8 divisors (see below), whose sum is σ = 152967360. Its totient is φ = 125650656.

The previous prime is 139081289. The next prime is 139081331. The reversal of 139081319 is 913180931.

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 139081319 - 2²⁰ = 138032743 is a prime.

It is a super-2 number, since 2×139081319² = 38687226589559522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139081379) 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, 113204 + ... + 114425.

It is an arithmetic number, because the mean of its divisors is an integer number (19120920).

Almost surely, 2^139081319 is an apocalyptic number.

139081319 is a deficient number, since it is larger than the sum of its proper divisors (13886041).

139081319 is a wasteful number, since it uses less digits than its factorization.

139081319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227689.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 139081319 is about 11793.2743120814. The cubic root of 139081319 is about 518.1111439927. Note that the first 4 decimals are identical.

The spelling of 139081319 in words is "one hundred thirty-nine million, eighty-one thousand, three hundred nineteen".