2761543 has 2 divisors, whose sum is σ = 2761544. Its totient is φ = 2761542.

The previous prime is 2761529. The next prime is 2761547. The reversal of 2761543 is 3451672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2761543 - 2¹³ = 2753351 is a prime.

It is a super-2 number, since 2×2761543² = 15252239481698, which contains 22 as substring.

2761543 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2761547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1380771 + 1380772.

It is an arithmetic number, because the mean of its divisors is an integer number (1380772).

2^2761543 is an apocalyptic number.

2761543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2761543 is an equidigital number, since it uses as much as digits as its factorization.

2761543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 2761543 is about 1661.7890961250. The cubic root of 2761543 is about 140.2977167822.

It can be divided in two parts, 27 and 61543, that multiplied together give a palindrome (1661661).

The spelling of 2761543 in words is "two million, seven hundred sixty-one thousand, five hundred forty-three".