2151011 has 2 divisors, whose sum is σ = 2151012. Its totient is φ = 2151010.

The previous prime is 2151007. The next prime is 2151013. The reversal of 2151011 is 1101512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151011 - 2² = 2151007 is a prime.

Together with 2151013, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2150983 and 2151001.

It is not a weakly prime, because it can be changed into another prime (2151013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075505 + 1075506.

It is an arithmetic number, because the mean of its divisors is an integer number (1075506).

2^2151011 is an apocalyptic number.

2151011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151011 is an equidigital number, since it uses as much as digits as its factorization.

2151011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 2151011 is about 1466.6325374817. The cubic root of 2151011 is about 129.0865152875.

Adding to 2151011 its reverse (1101512), we get a palindrome (3252523).

The spelling of 2151011 in words is "two million, one hundred fifty-one thousand, eleven".