139334858 has 16 divisors (see below), whose sum is σ = 228771816. Its totient is φ = 63253440.

The previous prime is 139334857. The next prime is 139334861. The reversal of 139334858 is 858433931.

It can be written as a sum of positive squares in 4 ways, for example, as 24137569 + 115197289 = 4913^2 + 10733^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139334857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42341 + ... + 45512.

Almost surely, 2^139334858 is an apocalyptic number.

139334858 is a deficient number, since it is larger than the sum of its proper divisors (89436958).

139334858 is a wasteful number, since it uses less digits than its factorization.

139334858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87929.

The product of its digits is 311040, while the sum is 44.

The square root of 139334858 is about 11804.0187224521. The cubic root of 139334858 is about 518.4257839962.

The spelling of 139334858 in words is "one hundred thirty-nine million, three hundred thirty-four thousand, eight hundred fifty-eight".