140221131 has 8 divisors (see below), whose sum is σ = 187492560. Its totient is φ = 93215232.

The previous prime is 140221097. The next prime is 140221223. The reversal of 140221131 is 131122041.

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

It is not a de Polignac number, because 140221131 - 2¹¹ = 140219083 is a prime.

It is a super-2 number, since 2×140221131² = 39323931157838322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140221131.

It is not an unprimeable number, because it can be changed into a prime (140221531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65146 + ... + 67263.

It is an arithmetic number, because the mean of its divisors is an integer number (23436570).

Almost surely, 2^140221131 is an apocalyptic number.

140221131 is a deficient number, since it is larger than the sum of its proper divisors (47271429).

140221131 is a wasteful number, since it uses less digits than its factorization.

140221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132765.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 140221131 is about 11841.5003694633. The cubic root of 140221131 is about 519.5226524236.

Adding to 140221131 its reverse (131122041), we get a palindrome (271343172).

The spelling of 140221131 in words is "one hundred forty million, two hundred twenty-one thousand, one hundred thirty-one".