140221354 has 16 divisors (see below), whose sum is σ = 258870528. Its totient is φ = 55472112.

The previous prime is 140221309. The next prime is 140221397. The reversal of 140221354 is 453122041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385042 + ... + 385405.

It is an arithmetic number, because the mean of its divisors is an integer number (16179408).

Almost surely, 2^140221354 is an apocalyptic number.

140221354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140221354 is a deficient number, since it is larger than the sum of its proper divisors (118649174).

140221354 is a wasteful number, since it uses less digits than its factorization.

140221354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770469.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 140221354 is about 11841.5097854961. The cubic root of 140221354 is about 519.5229278303.

Adding to 140221354 its reverse (453122041), we get a palindrome (593343395).

It can be divided in two parts, 14022 and 1354, that added together give a square (15376 = 124²).

The spelling of 140221354 in words is "one hundred forty million, two hundred twenty-one thousand, three hundred fifty-four".