2916156521 has 2 divisors, whose sum is σ = 2916156522. Its totient is φ = 2916156520.

The previous prime is 2916156491. The next prime is 2916156539. The reversal of 2916156521 is 1256516192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2167368025 + 748788496 = 46555^2 + 27364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2916156521 - 2¹⁰ = 2916155497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2916146521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1458078260 + 1458078261.

It is an arithmetic number, because the mean of its divisors is an integer number (1458078261).

Almost surely, 2^2916156521 is an apocalyptic number.

It is an amenable number.

2916156521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2916156521 is an equidigital number, since it uses as much as digits as its factorization.

2916156521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 38.

The square root of 2916156521 is about 54001.4492490711. The cubic root of 2916156521 is about 1428.6865082070.

The spelling of 2916156521 in words is "two billion, nine hundred sixteen million, one hundred fifty-six thousand, five hundred twenty-one".