2921004521 has 2 divisors, whose sum is σ = 2921004522. Its totient is φ = 2921004520.

The previous prime is 2921004517. The next prime is 2921004571. The reversal of 2921004521 is 1254001292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2599878121 + 321126400 = 50989^2 + 17920^2 .

It is a cyclic number.

It is not a de Polignac number, because 2921004521 - 2² = 2921004517 is a prime.

It is not a weakly prime, because it can be changed into another prime (2921004511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460502260 + 1460502261.

It is an arithmetic number, because the mean of its divisors is an integer number (1460502261).

Almost surely, 2^2921004521 is an apocalyptic number.

It is an amenable number.

2921004521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2921004521 is an equidigital number, since it uses as much as digits as its factorization.

2921004521 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 26.

The square root of 2921004521 is about 54046.3182927385. The cubic root of 2921004521 is about 1429.4777823220.

The spelling of 2921004521 in words is "two billion, nine hundred twenty-one million, four thousand, five hundred twenty-one".