71442403 has 2 divisors, whose sum is σ = 71442404. Its totient is φ = 71442402.

The previous prime is 71442389. The next prime is 71442419. The reversal of 71442403 is 30424417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71442403 - 2¹³ = 71434211 is a prime.

It is not a weakly prime, because it can be changed into another prime (71442493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35721201 + 35721202.

It is an arithmetic number, because the mean of its divisors is an integer number (35721202).

Almost surely, 2^71442403 is an apocalyptic number.

71442403 is a deficient number, since it is larger than the sum of its proper divisors (1).

71442403 is an equidigital number, since it uses as much as digits as its factorization.

71442403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 71442403 is about 8452.3607944763. The cubic root of 71442403 is about 414.9400464996.

The spelling of 71442403 in words is "seventy-one million, four hundred forty-two thousand, four hundred three".