139513858 has 8 divisors (see below), whose sum is σ = 228295440. Its totient is φ = 63415380.

The previous prime is 139513841. The next prime is 139513859. The reversal of 139513858 is 858315931.

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

It is not an unprimeable number, because it can be changed into a prime (139513859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170748 + ... + 3170791.

It is an arithmetic number, because the mean of its divisors is an integer number (28536930).

Almost surely, 2^139513858 is an apocalyptic number.

139513858 is a deficient number, since it is larger than the sum of its proper divisors (88781582).

139513858 is a wasteful number, since it uses less digits than its factorization.

139513858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341552.

The product of its digits is 129600, while the sum is 43.

The square root of 139513858 is about 11811.5984523688. The cubic root of 139513858 is about 518.6476918674.

The spelling of 139513858 in words is "one hundred thirty-nine million, five hundred thirteen thousand, eight hundred fifty-eight".