140221099 has 4 divisors (see below), whose sum is σ = 140406120. Its totient is φ = 140036080.

The previous prime is 140221097. The next prime is 140221223. The reversal of 140221099 is 990122041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140221099 - 2¹ = 140221097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140221097) 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, 91369 + ... + 92890.

It is an arithmetic number, because the mean of its divisors is an integer number (35101530).

Almost surely, 2^140221099 is an apocalyptic number.

140221099 is a deficient number, since it is larger than the sum of its proper divisors (185021).

140221099 is an equidigital number, since it uses as much as digits as its factorization.

140221099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185020.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 140221099 is about 11841.4990182831. The cubic root of 140221099 is about 519.5226129034.

The spelling of 140221099 in words is "one hundred forty million, two hundred twenty-one thousand, ninety-nine".