3139087739 has 4 divisors (see below), whose sum is σ = 3142438824. Its totient is φ = 3135736656.

The previous prime is 3139087729. The next prime is 3139087751. The reversal of 3139087739 is 9377809313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3139087739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3139087709) 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, 1674137 + ... + 1676010.

It is an arithmetic number, because the mean of its divisors is an integer number (785609706).

Almost surely, 2^3139087739 is an apocalyptic number.

3139087739 is a deficient number, since it is larger than the sum of its proper divisors (3351085).

3139087739 is an equidigital number, since it uses as much as digits as its factorization.

3139087739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351084.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 3139087739 is about 56027.5623153462. The cubic root of 3139087739 is about 1464.2025252768.

The spelling of 3139087739 in words is "three billion, one hundred thirty-nine million, eighty-seven thousand, seven hundred thirty-nine".