2239651 has 2 divisors, whose sum is σ = 2239652. Its totient is φ = 2239650.

The previous prime is 2239649. The next prime is 2239667. The reversal of 2239651 is 1569322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2239651 - 2¹ = 2239649 is a prime.

Together with 2239649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2239751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119825 + 1119826.

It is an arithmetic number, because the mean of its divisors is an integer number (1119826).

2^2239651 is an apocalyptic number.

2239651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239651 is an equidigital number, since it uses as much as digits as its factorization.

2239651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 2239651 is about 1496.5463574510. The cubic root of 2239651 is about 130.8358568038.

The spelling of 2239651 in words is "two million, two hundred thirty-nine thousand, six hundred fifty-one".