141421403 has 2 divisors, whose sum is σ = 141421404. Its totient is φ = 141421402.

The previous prime is 141421387. The next prime is 141421409. The reversal of 141421403 is 304124141.

It is a strong prime.

It is an emirp because it is prime and its reverse (304124141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141421403 - 2⁴ = 141421387 is a prime.

It is not a weakly prime, because it can be changed into another prime (141421409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70710701 + 70710702.

It is an arithmetic number, because the mean of its divisors is an integer number (70710702).

Almost surely, 2^141421403 is an apocalyptic number.

141421403 is a deficient number, since it is larger than the sum of its proper divisors (1).

141421403 is an equidigital number, since it uses as much as digits as its factorization.

141421403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 141421403 is about 11892.0731161560. The cubic root of 141421403 is about 521.0007883838. Note that the first 3 decimals are identical.

Adding to 141421403 its reverse (304124141), we get a palindrome (445545544).

The spelling of 141421403 in words is "one hundred forty-one million, four hundred twenty-one thousand, four hundred three".