141332221 has 4 divisors (see below), whose sum is σ = 142113244. Its totient is φ = 140551200.

The previous prime is 141332173. The next prime is 141332239. The reversal of 141332221 is 122233141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122233141 = 151 ⋅809491.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 140304025 = 1014^2 + 11845^2 .

It is a cyclic number.

It is not a de Polignac number, because 141332221 - 2¹⁵ = 141299453 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 (141332021) 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, 390240 + ... + 390601.

It is an arithmetic number, because the mean of its divisors is an integer number (35528311).

Almost surely, 2^141332221 is an apocalyptic number.

It is an amenable number.

141332221 is a deficient number, since it is larger than the sum of its proper divisors (781023).

141332221 is an equidigital number, since it uses as much as digits as its factorization.

141332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781022.

The product of its digits is 288, while the sum is 19.

The square root of 141332221 is about 11888.3228842423. The cubic root of 141332221 is about 520.8912489467.

Adding to 141332221 its reverse (122233141), we get a palindrome (263565362).

The spelling of 141332221 in words is "one hundred forty-one million, three hundred thirty-two thousand, two hundred twenty-one".