1604084149 has 2 divisors, whose sum is σ = 1604084150. Its totient is φ = 1604084148.

The previous prime is 1604084143. The next prime is 1604084171. The reversal of 1604084149 is 9414804061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 903423249 + 700660900 = 30057^2 + 26470^2 .

It is a cyclic number.

It is not a de Polignac number, because 1604084149 - 2⁵ = 1604084117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604084143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802042074 + 802042075.

It is an arithmetic number, because the mean of its divisors is an integer number (802042075).

Almost surely, 2^1604084149 is an apocalyptic number.

It is an amenable number.

1604084149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604084149 is an equidigital number, since it uses as much as digits as its factorization.

1604084149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1604084149 is about 40051.0193253555. The cubic root of 1604084149 is about 1170.6014267334.

The spelling of 1604084149 in words is "one billion, six hundred four million, eighty-four thousand, one hundred forty-nine".