140535541 has 4 divisors (see below), whose sum is σ = 141927084. Its totient is φ = 139144000.

The previous prime is 140535523. The next prime is 140535547. The reversal of 140535541 is 145535041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135629316 + 4906225 = 11646^2 + 2215^2 .

It is a cyclic number.

It is not a de Polignac number, because 140535541 - 2¹³ = 140527349 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 (140535547) 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, 695620 + ... + 695821.

It is an arithmetic number, because the mean of its divisors is an integer number (35481771).

Almost surely, 2^140535541 is an apocalyptic number.

It is an amenable number.

140535541 is a deficient number, since it is larger than the sum of its proper divisors (1391543).

140535541 is a wasteful number, since it uses less digits than its factorization.

140535541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391542.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 140535541 is about 11854.7687029313. The cubic root of 140535541 is about 519.9106614272.

The spelling of 140535541 in words is "one hundred forty million, five hundred thirty-five thousand, five hundred forty-one".