1604263061 has 2 divisors, whose sum is σ = 1604263062. Its totient is φ = 1604263060.

The previous prime is 1604263039. The next prime is 1604263099. The reversal of 1604263061 is 1603624061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1600480036 + 3783025 = 40006^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 1604263061 - 2⁶ = 1604262997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604263261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802131530 + 802131531.

It is an arithmetic number, because the mean of its divisors is an integer number (802131531).

Almost surely, 2^1604263061 is an apocalyptic number.

It is an amenable number.

1604263061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604263061 is an equidigital number, since it uses as much as digits as its factorization.

1604263061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1604263061 is about 40053.2528142222. The cubic root of 1604263061 is about 1170.6449462409.

The spelling of 1604263061 in words is "one billion, six hundred four million, two hundred sixty-three thousand, sixty-one".