1403253663 has 16 divisors (see below), whose sum is σ = 2138814720. Its totient is φ = 801662976.

The previous prime is 1403253641. The next prime is 1403253671. The reversal of 1403253663 is 3663523041.

It is not a de Polignac number, because 1403253663 - 2¹² = 1403249567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403253623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162468 + ... + 170886.

It is an arithmetic number, because the mean of its divisors is an integer number (133675920).

Almost surely, 2^1403253663 is an apocalyptic number.

1403253663 is a deficient number, since it is larger than the sum of its proper divisors (735561057).

1403253663 is an equidigital number, since it uses as much as digits as its factorization.

1403253663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16366.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 1403253663 is about 37460.0275360283. The cubic root of 1403253663 is about 1119.5548994003.

The spelling of 1403253663 in words is "one billion, four hundred three million, two hundred fifty-three thousand, six hundred sixty-three".