2913408521 has 2 divisors, whose sum is σ = 2913408522. Its totient is φ = 2913408520.

The previous prime is 2913408497. The next prime is 2913408559. The reversal of 2913408521 is 1258043192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1813822921 + 1099585600 = 42589^2 + 33160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2913408521 - 2¹⁴ = 2913392137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2913408221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1456704260 + 1456704261.

It is an arithmetic number, because the mean of its divisors is an integer number (1456704261).

Almost surely, 2^2913408521 is an apocalyptic number.

It is an amenable number.

2913408521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2913408521 is an equidigital number, since it uses as much as digits as its factorization.

2913408521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2913408521 is about 53975.9994905143. Note that the first 3 decimals coincide. The cubic root of 2913408521 is about 1428.2375994744.

The spelling of 2913408521 in words is "two billion, nine hundred thirteen million, four hundred eight thousand, five hundred twenty-one".