2236149385 has 4 divisors (see below), whose sum is σ = 2683379268. Its totient is φ = 1788919504.

The previous prime is 2236149343. The next prime is 2236149403. The reversal of 2236149385 is 5839416322.

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 557526544 + 1678622841 = 23612^2 + 40971^2 .

It is a cyclic number.

It is not a de Polignac number, because 2236149385 - 2¹⁹ = 2235625097 is a prime.

It is a super-3 number, since 3×2236149385³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223614934 + ... + 223614943.

It is an arithmetic number, because the mean of its divisors is an integer number (670844817).

Almost surely, 2^2236149385 is an apocalyptic number.

It is an amenable number.

2236149385 is a deficient number, since it is larger than the sum of its proper divisors (447229883).

2236149385 is an equidigital number, since it uses as much as digits as its factorization.

2236149385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447229882.

The product of its digits is 311040, while the sum is 43.

The square root of 2236149385 is about 47287.9412218379. The cubic root of 2236149385 is about 1307.6763549509.

The spelling of 2236149385 in words is "two billion, two hundred thirty-six million, one hundred forty-nine thousand, three hundred eighty-five".