1612303563 has 16 divisors (see below), whose sum is σ = 2316984320. Its totient is φ = 991380384.

The previous prime is 1612303547. The next prime is 1612303573. The reversal of 1612303563 is 3653032161.

It is a happy number.

It is not a de Polignac number, because 1612303563 - 2⁴ = 1612303547 is a prime.

It is the 40154-th Hogben number.

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 1612303563.

It is not an unprimeable number, because it can be changed into a prime (1612303573) by changing a digit.

It is a nontrivial repunit in base 40153.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33720 + ... + 66042.

It is an arithmetic number, because the mean of its divisors is an integer number (144811520).

Almost surely, 2^1612303563 is an apocalyptic number.

1612303563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1612303563 is a deficient number, since it is larger than the sum of its proper divisors (704680757).

1612303563 is a wasteful number, since it uses less digits than its factorization.

1612303563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33618.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1612303563 is about 40153.5000093392. The cubic root of 1612303563 is about 1172.5974297526.

The spelling of 1612303563 in words is "one billion, six hundred twelve million, three hundred three thousand, five hundred sixty-three".