1603755473 has 2 divisors, whose sum is σ = 1603755474. Its totient is φ = 1603755472.

The previous prime is 1603755463. The next prime is 1603755481. The reversal of 1603755473 is 3745573061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1403476369 + 200279104 = 37463^2 + 14152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1603755473 - 2²² = 1599561169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1603755473.

It is not a weakly prime, because it can be changed into another prime (1603755443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801877736 + 801877737.

It is an arithmetic number, because the mean of its divisors is an integer number (801877737).

Almost surely, 2^1603755473 is an apocalyptic number.

It is an amenable number.

1603755473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603755473 is an equidigital number, since it uses as much as digits as its factorization.

1603755473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 41.

The square root of 1603755473 is about 40046.9158987306. The cubic root of 1603755473 is about 1170.5214693995.

The spelling of 1603755473 in words is "one billion, six hundred three million, seven hundred fifty-five thousand, four hundred seventy-three".