1150543 has 4 divisors (see below), whose sum is σ = 1218240. Its totient is φ = 1082848.

The previous prime is 1150537. The next prime is 1150547. The reversal of 1150543 is 3450511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3450511 = 509 ⋅6779.

It is a cyclic number.

It is not a de Polignac number, because 1150543 - 2⁵ = 1150511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150547) 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 in 3 ways as a sum of consecutive naturals, for example, 33823 + ... + 33856.

It is an arithmetic number, because the mean of its divisors is an integer number (304560).

2^1150543 is an apocalyptic number.

1150543 is a deficient number, since it is larger than the sum of its proper divisors (67697).

1150543 is an equidigital number, since it uses as much as digits as its factorization.

1150543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67696.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1150543 is about 1072.6336746532. The cubic root of 1150543 is about 104.7854424450.

Subtracting 1150543 from its reverse (3450511), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 1 and 150543, that added together give a square (150544 = 388²).

The spelling of 1150543 in words is "one million, one hundred fifty thousand, five hundred forty-three".