2542669 has 2 divisors, whose sum is σ = 2542670. Its totient is φ = 2542668.

The previous prime is 2542649. The next prime is 2542681. The reversal of 2542669 is 9662452.

2542669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1532644 + 1010025 = 1238^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542669 - 2¹⁷ = 2411597 is a prime.

It is a super-2 number, since 2×2542669² = 12930331287122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2542609) 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, 1271334 + 1271335.

It is an arithmetic number, because the mean of its divisors is an integer number (1271335).

2^2542669 is an apocalyptic number.

It is an amenable number.

2542669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542669 is an equidigital number, since it uses as much as digits as its factorization.

2542669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 2542669 is about 1594.5748649719. The cubic root of 2542669 is about 136.4886723728.

The spelling of 2542669 in words is "two million, five hundred forty-two thousand, six hundred sixty-nine".