40543753 has 4 divisors (see below), whose sum is σ = 41851648. Its totient is φ = 39235860.

The previous prime is 40543747. The next prime is 40543799. The reversal of 40543753 is 35734504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40543753 - 2¹⁷ = 40412681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1307863 = 40543753 / (4 + 0 + 5 + 4 + 3 + 7 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40543253) 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, 653901 + ... + 653962.

It is an arithmetic number, because the mean of its divisors is an integer number (10462912).

Almost surely, 2^40543753 is an apocalyptic number.

It is an amenable number.

40543753 is a deficient number, since it is larger than the sum of its proper divisors (1307895).

40543753 is a wasteful number, since it uses less digits than its factorization.

40543753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307894.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 40543753 is about 6367.3976630960. The cubic root of 40543753 is about 343.5378941419.

Subtracting from 40543753 its reverse (35734504), we obtain a square (4809249 = 2193²).

The spelling of 40543753 in words is "forty million, five hundred forty-three thousand, seven hundred fifty-three".