139076093 has 4 divisors (see below), whose sum is σ = 149774268. Its totient is φ = 128377920.

The previous prime is 139076089. The next prime is 139076107. The reversal of 139076093 is 390670931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43388569 + 95687524 = 6587^2 + 9782^2 .

It is a cyclic number.

It is not a de Polignac number, because 139076093 - 2² = 139076089 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 (139076053) 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 3 ways as a sum of consecutive naturals, for example, 5349068 + ... + 5349093.

It is an arithmetic number, because the mean of its divisors is an integer number (37443567).

Almost surely, 2^139076093 is an apocalyptic number.

139076093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

139076093 is a deficient number, since it is larger than the sum of its proper divisors (10698175).

139076093 is a wasteful number, since it uses less digits than its factorization.

139076093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698174.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 139076093 is about 11793.0527430348. The cubic root of 139076093 is about 518.1046545452.

The spelling of 139076093 in words is "one hundred thirty-nine million, seventy-six thousand, ninety-three".