2273212639 has 2 divisors, whose sum is σ = 2273212640. Its totient is φ = 2273212638.

The previous prime is 2273212637. The next prime is 2273212657. The reversal of 2273212639 is 9362123722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2273212639 - 2¹ = 2273212637 is a prime.

Together with 2273212637, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2273212598 and 2273212607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2273212637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136606319 + 1136606320.

It is an arithmetic number, because the mean of its divisors is an integer number (1136606320).

Almost surely, 2^2273212639 is an apocalyptic number.

2273212639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273212639 is an equidigital number, since it uses as much as digits as its factorization.

2273212639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 2273212639 is about 47678.2197549363. The cubic root of 2273212639 is about 1314.8615349587.

The spelling of 2273212639 in words is "two billion, two hundred seventy-three million, two hundred twelve thousand, six hundred thirty-nine".