1327026403 has 4 divisors (see below), whose sum is σ = 1327103680. Its totient is φ = 1326949128.

The previous prime is 1327026383. The next prime is 1327026427. The reversal of 1327026403 is 3046207231.

1327026403 is a nontrivial binomial coefficient, being equal to C(51518, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(1327026403) divides (1327026403-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1327026403 is a prime.

It is a deceptive number, since it divides R_1327026402.

It is not an unprimeable number, because it can be changed into a prime (1327026803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 51517.

It is an arithmetic number, because the mean of its divisors is an integer number (331775920).

Almost surely, 2^1327026403 is an apocalyptic number.

1327026403 is the 51517-th triangular number and also the 25759-th hexagonal number.

1327026403 is the 17173-rd centered nonagonal number.

1327026403 is a deficient number, since it is larger than the sum of its proper divisors (77277).

1327026403 is an equidigital number, since it uses as much as digits as its factorization.

1327026403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77276.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1327026403 is about 36428.3735980623. The cubic root of 1327026403 is about 1098.9042540331.

The spelling of 1327026403 in words is "one billion, three hundred twenty-seven million, twenty-six thousand, four hundred three".