1202543 has 4 divisors (see below), whose sum is σ = 1244040. Its totient is φ = 1161048.

The previous prime is 1202507. The next prime is 1202549. The reversal of 1202543 is 3452021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3452021 = 1279 ⋅2699.

It is a cyclic number.

It is not a de Polignac number, because 1202543 - 2¹² = 1198447 is a prime.

It is a super-2 number, since 2×1202543² = 2892219333698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20705 + ... + 20762.

It is an arithmetic number, because the mean of its divisors is an integer number (311010).

2^1202543 is an apocalyptic number.

1202543 is a deficient number, since it is larger than the sum of its proper divisors (41497).

1202543 is an equidigital number, since it uses as much as digits as its factorization.

1202543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41496.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1202543 is about 1096.6052161102. The cubic root of 1202543 is about 106.3408689761.

Adding to 1202543 its reverse (3452021), we get a palindrome (4654564).

The spelling of 1202543 in words is "one million, two hundred two thousand, five hundred forty-three".