139316194 has 4 divisors (see below), whose sum is σ = 208974294. Its totient is φ = 69658096.

The previous prime is 139316183. The next prime is 139316197. The reversal of 139316194 is 491613931.

139316194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491613931 = 37 ⋅13286863.

It can be written as a sum of positive squares in only one way, i.e., 115842169 + 23474025 = 10763^2 + 4845^2 .

It is not an unprimeable number, because it can be changed into a prime (139316197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34829047 + ... + 34829050.

Almost surely, 2^139316194 is an apocalyptic number.

139316194 is a deficient number, since it is larger than the sum of its proper divisors (69658100).

139316194 is an equidigital number, since it uses as much as digits as its factorization.

139316194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69658099.

The product of its digits is 17496, while the sum is 37.

The square root of 139316194 is about 11803.2281177651. The cubic root of 139316194 is about 518.4026351326.

The spelling of 139316194 in words is "one hundred thirty-nine million, three hundred sixteen thousand, one hundred ninety-four".