139234193 has 8 divisors (see below), whose sum is σ = 160533888. Its totient is φ = 118286784.

The previous prime is 139234189. The next prime is 139234213. The reversal of 139234193 is 391432931.

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

It is not a de Polignac number, because 139234193 - 2² = 139234189 is a prime.

It is a super-2 number, since 2×139234193² = 38772321000722498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139234393) 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, 87221 + ... + 88802.

It is an arithmetic number, because the mean of its divisors is an integer number (20066736).

Almost surely, 2^139234193 is an apocalyptic number.

It is an amenable number.

139234193 is a deficient number, since it is larger than the sum of its proper divisors (21299695).

139234193 is a wasteful number, since it uses less digits than its factorization.

139234193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176143.

The product of its digits is 17496, while the sum is 35.

The square root of 139234193 is about 11799.7539381124. The cubic root of 139234193 is about 518.3009052085.

The spelling of 139234193 in words is "one hundred thirty-nine million, two hundred thirty-four thousand, one hundred ninety-three".