2651189 has 2 divisors, whose sum is σ = 2651190. Its totient is φ = 2651188.

The previous prime is 2651137. The next prime is 2651191. The reversal of 2651189 is 9811562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1716100 + 935089 = 1310^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 2651189 - 2⁸ = 2650933 is a prime.

It is a super-2 number, since 2×2651189² = 14057606227442, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2651191, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2651119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325594 + 1325595.

It is an arithmetic number, because the mean of its divisors is an integer number (1325595).

2^2651189 is an apocalyptic number.

It is an amenable number.

2651189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651189 is an equidigital number, since it uses as much as digits as its factorization.

2651189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 2651189 is about 1628.2472171019. The cubic root of 2651189 is about 138.4034437592.

It can be divided in two parts, 26 and 51189, that added together give a palindrome (51215).

The spelling of 2651189 in words is "two million, six hundred fifty-one thousand, one hundred eighty-nine".