2985122739 has 4 divisors (see below), whose sum is σ = 3980163656. Its totient is φ = 1990081824.

The previous prime is 2985122671. The next prime is 2985122761. The reversal of 2985122739 is 9372215892.

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

It is not a de Polignac number, because 2985122739 - 2⁷ = 2985122611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2985120739) 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, 497520454 + ... + 497520459.

It is an arithmetic number, because the mean of its divisors is an integer number (995040914).

Almost surely, 2^2985122739 is an apocalyptic number.

2985122739 is a deficient number, since it is larger than the sum of its proper divisors (995040917).

2985122739 is an equidigital number, since it uses as much as digits as its factorization.

2985122739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995040916.

The product of its digits is 544320, while the sum is 48.

The square root of 2985122739 is about 54636.2767673640. The cubic root of 2985122739 is about 1439.8615380949.

The spelling of 2985122739 in words is "two billion, nine hundred eighty-five million, one hundred twenty-two thousand, seven hundred thirty-nine".