1403921543 has 2 divisors, whose sum is σ = 1403921544. Its totient is φ = 1403921542.

The previous prime is 1403921531. The next prime is 1403921669. The reversal of 1403921543 is 3451293041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1403921543 - 2⁶ = 1403921479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1403921143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701960771 + 701960772.

It is an arithmetic number, because the mean of its divisors is an integer number (701960772).

Almost surely, 2^1403921543 is an apocalyptic number.

1403921543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403921543 is an equidigital number, since it uses as much as digits as its factorization.

1403921543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1403921543 is about 37468.9410445505. The cubic root of 1403921543 is about 1119.7324889908.

The spelling of 1403921543 in words is "one billion, four hundred three million, nine hundred twenty-one thousand, five hundred forty-three".