3139963 has 4 divisors (see below), whose sum is σ = 3168880. Its totient is φ = 3111048.

The previous prime is 3139943. The next prime is 3139967. The reversal of 3139963 is 3699313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3699313 = 71 ⋅52103.

It is a cyclic number.

It is not a de Polignac number, because 3139963 - 2¹³ = 3131771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3139967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14295 + ... + 14512.

It is an arithmetic number, because the mean of its divisors is an integer number (792220).

Almost surely, 2^3139963 is an apocalyptic number.

3139963 is a deficient number, since it is larger than the sum of its proper divisors (28917).

3139963 is a wasteful number, since it uses less digits than its factorization.

3139963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28916.

The product of its digits is 13122, while the sum is 34.

The square root of 3139963 is about 1771.9940744822. The cubic root of 3139963 is about 146.4338598810.

The spelling of 3139963 in words is "three million, one hundred thirty-nine thousand, nine hundred sixty-three".