2069531 has 2 divisors, whose sum is σ = 2069532. Its totient is φ = 2069530.

The previous prime is 2069519. The next prime is 2069533. The reversal of 2069531 is 1359602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2069531 - 2¹⁸ = 1807387 is a prime.

It is a super-2 number, since 2×2069531² = 8565917119922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2069533, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2069531.

It is not a weakly prime, because it can be changed into another prime (2069533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034765 + 1034766.

It is an arithmetic number, because the mean of its divisors is an integer number (1034766).

2^2069531 is an apocalyptic number.

2069531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2069531 is an equidigital number, since it uses as much as digits as its factorization.

2069531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2069531 is about 1438.5864589937. The cubic root of 2069531 is about 127.4355640062.

The spelling of 2069531 in words is "two million, sixty-nine thousand, five hundred thirty-one".