140321541 has 8 divisors (see below), whose sum is σ = 187982944. Its totient is φ = 93103920.

The previous prime is 140321539. The next prime is 140321563. The reversal of 140321541 is 145123041.

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

It is not a de Polignac number, because 140321541 - 2¹ = 140321539 is a prime.

It is a super-2 number, since 2×140321541² = 39380269737229362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321591) 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, 110206 + ... + 111471.

It is an arithmetic number, because the mean of its divisors is an integer number (23497868).

Almost surely, 2^140321541 is an apocalyptic number.

It is an amenable number.

140321541 is a deficient number, since it is larger than the sum of its proper divisors (47661403).

140321541 is a wasteful number, since it uses less digits than its factorization.

140321541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221891.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140321541 is about 11845.7393606309. The cubic root of 140321541 is about 519.6466299881.

Adding to 140321541 its reverse (145123041), we get a palindrome (285444582).

The spelling of 140321541 in words is "one hundred forty million, three hundred twenty-one thousand, five hundred forty-one".