140559221 has 4 divisors (see below), whose sum is σ = 153337344. Its totient is φ = 127781100.

The previous prime is 140559203. The next prime is 140559227. The reversal of 140559221 is 122955041.

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 140559221 - 2¹⁸ = 140297077 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 (140559227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6389045 + ... + 6389066.

It is an arithmetic number, because the mean of its divisors is an integer number (38334336).

Almost surely, 2^140559221 is an apocalyptic number.

140559221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140559221 is a deficient number, since it is larger than the sum of its proper divisors (12778123).

140559221 is a wasteful number, since it uses less digits than its factorization.

140559221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12778122.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 140559221 is about 11855.7674150601. The cubic root of 140559221 is about 519.9398611418.

The spelling of 140559221 in words is "one hundred forty million, five hundred fifty-nine thousand, two hundred twenty-one".