141225421 has 2 divisors, whose sum is σ = 141225422. Its totient is φ = 141225420.

The previous prime is 141225419. The next prime is 141225439. The reversal of 141225421 is 124522141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74149321 + 67076100 = 8611^2 + 8190^2 .

It is an emirp because it is prime and its reverse (124522141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141225421 - 2¹ = 141225419 is a prime.

Together with 141225419, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 141225392 and 141225401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141220421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70612710 + 70612711.

It is an arithmetic number, because the mean of its divisors is an integer number (70612711).

Almost surely, 2^141225421 is an apocalyptic number.

It is an amenable number.

141225421 is a deficient number, since it is larger than the sum of its proper divisors (1).

141225421 is an equidigital number, since it uses as much as digits as its factorization.

141225421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 22.

The square root of 141225421 is about 11883.8302327154. The cubic root of 141225421 is about 520.7600092248.

Adding to 141225421 its reverse (124522141), we get a palindrome (265747562).

The spelling of 141225421 in words is "one hundred forty-one million, two hundred twenty-five thousand, four hundred twenty-one".