2243256139 has 4 divisors (see below), whose sum is σ = 2254643424. Its totient is φ = 2231868856.

The previous prime is 2243256137. The next prime is 2243256161. The reversal of 2243256139 is 9316523422.

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

It is a cyclic number.

It is not a de Polignac number, because 2243256139 - 2¹ = 2243256137 is a prime.

It is a super-2 number, since 2×2243256139² = 10064396210322374642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2243256098 and 2243256107.

It is not an unprimeable number, because it can be changed into a prime (2243256137) 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, 5693347 + ... + 5693740.

It is an arithmetic number, because the mean of its divisors is an integer number (563660856).

Almost surely, 2^2243256139 is an apocalyptic number.

2243256139 is a deficient number, since it is larger than the sum of its proper divisors (11387285).

2243256139 is a wasteful number, since it uses less digits than its factorization.

2243256139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11387284.

The product of its digits is 77760, while the sum is 37.

The square root of 2243256139 is about 47363.0250195234. The cubic root of 2243256139 is about 1309.0602079946.

The spelling of 2243256139 in words is "two billion, two hundred forty-three million, two hundred fifty-six thousand, one hundred thirty-nine".