3161204521 has 2 divisors, whose sum is σ = 3161204522. Its totient is φ = 3161204520.

The previous prime is 3161204441. The next prime is 3161204531. The reversal of 3161204521 is 1254021613.

It is a happy number.

3161204521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3151250496 + 9954025 = 56136^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 3161204521 - 2⁷ = 3161204393 is a prime.

It is not a weakly prime, because it can be changed into another prime (3161204531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580602260 + 1580602261.

It is an arithmetic number, because the mean of its divisors is an integer number (1580602261).

Almost surely, 2^3161204521 is an apocalyptic number.

It is an amenable number.

3161204521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3161204521 is an equidigital number, since it uses as much as digits as its factorization.

3161204521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3161204521 is about 56224.5900029516. The cubic root of 3161204521 is about 1467.6332131441.

The spelling of 3161204521 in words is "three billion, one hundred sixty-one million, two hundred four thousand, five hundred twenty-one".