1040204149 has 2 divisors, whose sum is σ = 1040204150. Its totient is φ = 1040204148.

The previous prime is 1040204111. The next prime is 1040204167. The reversal of 1040204149 is 9414020401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729810225 + 310393924 = 27015^2 + 17618^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040204149 - 2⁷ = 1040204021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040204749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520102074 + 520102075.

It is an arithmetic number, because the mean of its divisors is an integer number (520102075).

Almost surely, 2^1040204149 is an apocalyptic number.

It is an amenable number.

1040204149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040204149 is an equidigital number, since it uses as much as digits as its factorization.

1040204149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1040204149 is about 32252.1960337587. The cubic root of 1040204149 is about 1013.2256929057.

The spelling of 1040204149 in words is "one billion, forty million, two hundred four thousand, one hundred forty-nine".