1428162503 has 4 divisors (see below), whose sum is σ = 1512172080. Its totient is φ = 1344152928.

The previous prime is 1428162499. The next prime is 1428162521. The reversal of 1428162503 is 3052618241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3052618241 = 32237 ⋅94693.

It is a cyclic number.

It is not a de Polignac number, because 1428162503 - 2² = 1428162499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428162503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428162103) 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 in 3 ways as a sum of consecutive naturals, for example, 42004763 + ... + 42004796.

It is an arithmetic number, because the mean of its divisors is an integer number (378043020).

Almost surely, 2^1428162503 is an apocalyptic number.

1428162503 is a deficient number, since it is larger than the sum of its proper divisors (84009577).

1428162503 is an equidigital number, since it uses as much as digits as its factorization.

1428162503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84009576.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1428162503 is about 37791.0373369136. The cubic root of 1428162503 is about 1126.1404081582.

The spelling of 1428162503 in words is "one billion, four hundred twenty-eight million, one hundred sixty-two thousand, five hundred three".