140552543 has 4 divisors (see below), whose sum is σ = 145086528. Its totient is φ = 136018560.

The previous prime is 140552501. The next prime is 140552561. The reversal of 140552543 is 345255041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345255041 = 43 ⋅8029187.

It is a cyclic number.

It is not a de Polignac number, because 140552543 - 2¹⁴ = 140536159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140552143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2266946 + ... + 2267007.

It is an arithmetic number, because the mean of its divisors is an integer number (36271632).

Almost surely, 2^140552543 is an apocalyptic number.

140552543 is a deficient number, since it is larger than the sum of its proper divisors (4533985).

140552543 is an equidigital number, since it uses as much as digits as its factorization.

140552543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533984.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 140552543 is about 11855.4857766352. The cubic root of 140552543 is about 519.9316268584.

The spelling of 140552543 in words is "one hundred forty million, five hundred fifty-two thousand, five hundred forty-three".