140221073 has 4 divisors (see below), whose sum is σ = 140255808. Its totient is φ = 140186340.

The previous prime is 140221043. The next prime is 140221079. The reversal of 140221073 is 370122041.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370122041 = 29 ⋅12762829.

It is a cyclic number.

It is not a de Polignac number, because 140221073 - 2¹⁴ = 140204689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140221079) 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, 10373 + ... + 19698.

It is an arithmetic number, because the mean of its divisors is an integer number (35063952).

Almost surely, 2^140221073 is an apocalyptic number.

It is an amenable number.

140221073 is a deficient number, since it is larger than the sum of its proper divisors (34735).

140221073 is an equidigital number, since it uses as much as digits as its factorization.

140221073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34734.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 140221073 is about 11841.4979204491. The cubic root of 140221073 is about 519.5225807932.

The spelling of 140221073 in words is "one hundred forty million, two hundred twenty-one thousand, seventy-three".