2945139836 has 6 divisors (see below), whose sum is σ = 5153994720. Its totient is φ = 1472569916.

The previous prime is 2945139817. The next prime is 2945139877. The reversal of 2945139836 is 6389315492.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 368142476 + ... + 368142483.

It is an arithmetic number, because the mean of its divisors is an integer number (858999120).

Almost surely, 2^2945139836 is an apocalyptic number.

It is an amenable number.

2945139836 is a deficient number, since it is larger than the sum of its proper divisors (2208854884).

2945139836 is a wasteful number, since it uses less digits than its factorization.

2945139836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736284963 (or 736284961 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 2945139836 is about 54269.1425766061. The cubic root of 2945139836 is about 1433.4040922462.

The spelling of 2945139836 in words is "two billion, nine hundred forty-five million, one hundred thirty-nine thousand, eight hundred thirty-six".