1107543 has 4 divisors (see below), whose sum is σ = 1476728. Its totient is φ = 738360.

The previous prime is 1107527. The next prime is 1107553. The reversal of 1107543 is 3457011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3457011 = 3 ⋅1152337.

It is not a de Polignac number, because 1107543 - 2⁴ = 1107527 is a prime.

It is a D-number.

It is a Duffinian number.

1107543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107503) 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, 184588 + ... + 184593.

It is an arithmetic number, because the mean of its divisors is an integer number (369182).

2^1107543 is an apocalyptic number.

1107543 is a deficient number, since it is larger than the sum of its proper divisors (369185).

1107543 is an equidigital number, since it uses as much as digits as its factorization.

1107543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369184.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1107543 is about 1052.3986887107. The cubic root of 1107543 is about 103.4634284662.

The spelling of 1107543 in words is "one million, one hundred seven thousand, five hundred forty-three".