2631071 has 2 divisors, whose sum is σ = 2631072. Its totient is φ = 2631070.

The previous prime is 2631067. The next prime is 2631077. The reversal of 2631071 is 1701362.

It is a happy number.

2631071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2631071 - 2² = 2631067 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2631077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315535 + 1315536.

It is an arithmetic number, because the mean of its divisors is an integer number (1315536).

2^2631071 is an apocalyptic number.

2631071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631071 is an equidigital number, since it uses as much as digits as its factorization.

2631071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2631071 is about 1622.0576438586. The cubic root of 2631071 is about 138.0524725191.

The spelling of 2631071 in words is "two million, six hundred thirty-one thousand, seventy-one".