2985121393 has 4 divisors (see below), whose sum is σ = 2992565988. Its totient is φ = 2977676800.

The previous prime is 2985121367. The next prime is 2985121421. The reversal of 2985121393 is 3931215892.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2971667169 + 13454224 = 54513^2 + 3668^2 .

It is a cyclic number.

It is not a de Polignac number, because 2985121393 - 2¹⁷ = 2984990321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2985121313) 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, 3721696 + ... + 3722497.

It is an arithmetic number, because the mean of its divisors is an integer number (748141497).

Almost surely, 2^2985121393 is an apocalyptic number.

It is an amenable number.

2985121393 is a deficient number, since it is larger than the sum of its proper divisors (7444595).

2985121393 is an equidigital number, since it uses as much as digits as its factorization.

2985121393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444594.

The product of its digits is 116640, while the sum is 43.

The square root of 2985121393 is about 54636.2644495394. The cubic root of 2985121393 is about 1439.8613216824.

The spelling of 2985121393 in words is "two billion, nine hundred eighty-five million, one hundred twenty-one thousand, three hundred ninety-three".