3139761 has 4 divisors (see below), whose sum is σ = 4186352. Its totient is φ = 2093172.

The previous prime is 3139757. The next prime is 3139771. The reversal of 3139761 is 1679313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3139761 - 2² = 3139757 is a prime.

It is a D-number.

It is a Duffinian number.

3139761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3139771) 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, 523291 + ... + 523296.

It is an arithmetic number, because the mean of its divisors is an integer number (1046588).

Almost surely, 2^3139761 is an apocalyptic number.

It is an amenable number.

3139761 is a deficient number, since it is larger than the sum of its proper divisors (1046591).

3139761 is a wasteful number, since it uses less digits than its factorization.

3139761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046590.

The product of its digits is 3402, while the sum is 30.

The square root of 3139761 is about 1771.9370756322. The cubic root of 3139761 is about 146.4307196875.

The spelling of 3139761 in words is "three million, one hundred thirty-nine thousand, seven hundred sixty-one".