141424421 has 4 divisors (see below), whose sum is σ = 141654252. Its totient is φ = 141194592.

The previous prime is 141424399. The next prime is 141424427. The reversal of 141424421 is 124424141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124424141 = 19 ⋅6548639.

It can be written as a sum of positive squares in 2 ways, for example, as 74822500 + 66601921 = 8650^2 + 8161^2 .

It is a cyclic number.

It is not a de Polignac number, because 141424421 - 2¹⁰ = 141423397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141424427) 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, 113990 + ... + 115223.

It is an arithmetic number, because the mean of its divisors is an integer number (35413563).

Almost surely, 2^141424421 is an apocalyptic number.

It is an amenable number.

141424421 is a deficient number, since it is larger than the sum of its proper divisors (229831).

141424421 is an equidigital number, since it uses as much as digits as its factorization.

141424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229830.

The product of its digits is 1024, while the sum is 23.

The square root of 141424421 is about 11892.2000067271. The cubic root of 141424421 is about 521.0044944923.

Adding to 141424421 its reverse (124424141), we get a palindrome (265848562).

The spelling of 141424421 in words is "one hundred forty-one million, four hundred twenty-four thousand, four hundred twenty-one".