3139345 has 12 divisors (see below), whose sum is σ = 4141620. Its totient is φ = 2282720.

The previous prime is 3139333. The next prime is 3139363. The reversal of 3139345 is 5439313.

3139345 = T₃₁₀ + T₃₁₁ + ... + T₃₆₄.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 1308736 = 1353^2 + 1144^2 .

It is not a de Polignac number, because 3139345 - 2¹³ = 3131153 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1990 + ... + 3199.

It is an arithmetic number, because the mean of its divisors is an integer number (345135).

Almost surely, 2^3139345 is an apocalyptic number.

It is an amenable number.

3139345 is a deficient number, since it is larger than the sum of its proper divisors (1002275).

3139345 is a wasteful number, since it uses less digits than its factorization.

3139345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216 (or 5205 counting only the distinct ones).

The product of its digits is 4860, while the sum is 28.

The square root of 3139345 is about 1771.8196860855. The cubic root of 3139345 is about 146.4242523300.

Subtracting 3139345 from its reverse (5439313), we obtain a cube (2299968 = 132³).

The spelling of 3139345 in words is "three million, one hundred thirty-nine thousand, three hundred forty-five".