139136893 has 8 divisors (see below), whose sum is σ = 160588800. Its totient is φ = 118078800.

The previous prime is 139136861. The next prime is 139136917. The reversal of 139136893 is 398631931.

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 139136893 - 2⁵ = 139136861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139136093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97693 + ... + 99106.

It is an arithmetic number, because the mean of its divisors is an integer number (20073600).

Almost surely, 2^139136893 is an apocalyptic number.

It is an amenable number.

139136893 is a deficient number, since it is larger than the sum of its proper divisors (21451907).

139136893 is a wasteful number, since it uses less digits than its factorization.

139136893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196907.

The product of its digits is 104976, while the sum is 43.

The square root of 139136893 is about 11795.6302502240. The cubic root of 139136893 is about 518.1801436127.

The spelling of 139136893 in words is "one hundred thirty-nine million, one hundred thirty-six thousand, eight hundred ninety-three".