2243136257 has 8 divisors (see below), whose sum is σ = 2376836160. Its totient is φ = 2111000400.

The previous prime is 2243136251. The next prime is 2243136263. The reversal of 2243136257 is 7526313422.

It is an interprime number because it is at equal distance from previous prime (2243136251) and next prime (2243136263).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2243136257 - 2⁸ = 2243136001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2243136251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388058 + ... + 393795.

It is an arithmetic number, because the mean of its divisors is an integer number (297104520).

Almost surely, 2^2243136257 is an apocalyptic number.

It is an amenable number.

2243136257 is a deficient number, since it is larger than the sum of its proper divisors (133699903).

2243136257 is a wasteful number, since it uses less digits than its factorization.

2243136257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782023.

The product of its digits is 60480, while the sum is 35.

The square root of 2243136257 is about 47361.7594373351. The cubic root of 2243136257 is about 1309.0368883881.

Adding to 2243136257 its reverse (7526313422), we get a palindrome (9769449679).

The spelling of 2243136257 in words is "two billion, two hundred forty-three million, one hundred thirty-six thousand, two hundred fifty-seven".