1604554241 has 2 divisors, whose sum is σ = 1604554242. Its totient is φ = 1604554240.

The previous prime is 1604554213. The next prime is 1604554261. The reversal of 1604554241 is 1424554061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1444000000 + 160554241 = 38000^2 + 12671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604554241 is a prime.

It is a super-2 number, since 2×1604554241² = 5149188624622172162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1604554198 and 1604554207.

It is not a weakly prime, because it can be changed into another prime (1604554201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802277120 + 802277121.

It is an arithmetic number, because the mean of its divisors is an integer number (802277121).

Almost surely, 2^1604554241 is an apocalyptic number.

It is an amenable number.

1604554241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604554241 is an equidigital number, since it uses as much as digits as its factorization.

1604554241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 1604554241 is about 40056.8875600689. The cubic root of 1604554241 is about 1170.7157674968.

The spelling of 1604554241 in words is "one billion, six hundred four million, five hundred fifty-four thousand, two hundred forty-one".