2249139271 has 4 divisors (see below), whose sum is σ = 2279949472. Its totient is φ = 2218329072.

The previous prime is 2249139257. The next prime is 2249139289. The reversal of 2249139271 is 1729319422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1729319422 = 2 ⋅864659711.

It is a cyclic number.

It is not a de Polignac number, because 2249139271 - 2²³ = 2240750663 is a prime.

It is a super-2 number, since 2×2249139271² = 10117254920708822882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2249139241) 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 3 ways as a sum of consecutive naturals, for example, 15404991 + ... + 15405136.

It is an arithmetic number, because the mean of its divisors is an integer number (569987368).

Almost surely, 2^2249139271 is an apocalyptic number.

2249139271 is a deficient number, since it is larger than the sum of its proper divisors (30810201).

2249139271 is an equidigital number, since it uses as much as digits as its factorization.

2249139271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30810200.

The product of its digits is 54432, while the sum is 40.

The square root of 2249139271 is about 47425.0911543668. The cubic root of 2249139271 is about 1310.2035833398.

The spelling of 2249139271 in words is "two billion, two hundred forty-nine million, one hundred thirty-nine thousand, two hundred seventy-one".