3138194 has 4 divisors (see below), whose sum is σ = 4707294. Its totient is φ = 1569096.

The previous prime is 3138193. The next prime is 3138209. The reversal of 3138194 is 4918313.

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

It can be written as a sum of positive squares in only one way, i.e., 1729225 + 1408969 = 1315^2 + 1187^2 .

It is not an unprimeable number, because it can be changed into a prime (3138193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784547 + ... + 784550.

Almost surely, 2^3138194 is an apocalyptic number.

3138194 is a deficient number, since it is larger than the sum of its proper divisors (1569100).

3138194 is a wasteful number, since it uses less digits than its factorization.

3138194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569099.

The product of its digits is 2592, while the sum is 29.

The square root of 3138194 is about 1771.4948489905. The cubic root of 3138194 is about 146.4063552936.

The spelling of 3138194 in words is "three million, one hundred thirty-eight thousand, one hundred ninety-four".