1403265001 has 2 divisors, whose sum is σ = 1403265002. Its totient is φ = 1403265000.

The previous prime is 1403264999. The next prime is 1403265011. The reversal of 1403265001 is 1005623041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1205131225 + 198133776 = 34715^2 + 14076^2 .

It is an emirp because it is prime and its reverse (1005623041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1403265001 - 2¹ = 1403264999 is a prime.

Together with 1403264999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1403265011) 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, 701632500 + 701632501.

It is an arithmetic number, because the mean of its divisors is an integer number (701632501).

Almost surely, 2^1403265001 is an apocalyptic number.

It is an amenable number.

1403265001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403265001 is an equidigital number, since it uses as much as digits as its factorization.

1403265001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1403265001 is about 37460.1788703685. The cubic root of 1403265001 is about 1119.5579146497.

Adding to 1403265001 its reverse (1005623041), we get a palindrome (2408888042).

The spelling of 1403265001 in words is "one billion, four hundred three million, two hundred sixty-five thousand, one".