141444421 has 4 divisors (see below), whose sum is σ = 143763244. Its totient is φ = 139125600.

The previous prime is 141444419. The next prime is 141444427. The reversal of 141444421 is 124444141.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3381921 + 138062500 = 1839^2 + 11750^2 .

It is a cyclic number.

It is not a de Polignac number, because 141444421 - 2¹ = 141444419 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 (141444427) 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, 1159320 + ... + 1159441.

It is an arithmetic number, because the mean of its divisors is an integer number (35940811).

Almost surely, 2^141444421 is an apocalyptic number.

It is an amenable number.

141444421 is a deficient number, since it is larger than the sum of its proper divisors (2318823).

141444421 is an equidigital number, since it uses as much as digits as its factorization.

141444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318822.

The product of its digits is 2048, while the sum is 25.

The square root of 141444421 is about 11893.0408643038. The cubic root of 141444421 is about 521.0290531898.

Adding to 141444421 its reverse (124444141), we get a palindrome (265888562).

The spelling of 141444421 in words is "one hundred forty-one million, four hundred forty-four thousand, four hundred twenty-one".