140563541 has 8 divisors (see below), whose sum is σ = 141649560. Its totient is φ = 139482112.

The previous prime is 140563537. The next prime is 140563567. The reversal of 140563541 is 145365041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46225 + 140517316 = 215^2 + 11854^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140563541 - 2² = 140563537 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 (142563541) 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 7 ways as a sum of consecutive naturals, for example, 81395 + ... + 83103.

It is an arithmetic number, because the mean of its divisors is an integer number (17706195).

Almost surely, 2^140563541 is an apocalyptic number.

It is an amenable number.

140563541 is a deficient number, since it is larger than the sum of its proper divisors (1086019).

140563541 is a wasteful number, since it uses less digits than its factorization.

140563541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 140563541 is about 11855.9496034691. The cubic root of 140563541 is about 519.9451877630.

It can be divided in two parts, 1405 and 63541, that added together give a palindrome (64946).

The spelling of 140563541 in words is "one hundred forty million, five hundred sixty-three thousand, five hundred forty-one".