2151089 has 2 divisors, whose sum is σ = 2151090. Its totient is φ = 2151088.

The previous prime is 2151073. The next prime is 2151101. The reversal of 2151089 is 9801512.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 134689 = 1420^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151089 - 2⁴ = 2151073 is a prime.

It is not a weakly prime, because it can be changed into another prime (2153089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075544 + 1075545.

It is an arithmetic number, because the mean of its divisors is an integer number (1075545).

2^2151089 is an apocalyptic number.

It is an amenable number.

2151089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151089 is an equidigital number, since it uses as much as digits as its factorization.

2151089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 2151089 is about 1466.6591287685. The cubic root of 2151089 is about 129.0880755812.

The spelling of 2151089 in words is "two million, one hundred fifty-one thousand, eighty-nine".