2151512533 has 2 divisors, whose sum is σ = 2151512534. Its totient is φ = 2151512532.

The previous prime is 2151512521. The next prime is 2151512543. The reversal of 2151512533 is 3352151512.

2151512533 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., 1953463204 + 198049329 = 44198^2 + 14073^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151512533 - 2²⁹ = 1614641621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151512543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075756266 + 1075756267.

It is an arithmetic number, because the mean of its divisors is an integer number (1075756267).

Almost surely, 2^2151512533 is an apocalyptic number.

It is an amenable number.

2151512533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151512533 is an equidigital number, since it uses as much as digits as its factorization.

2151512533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500, while the sum is 28.

The square root of 2151512533 is about 46384.3996727348. The cubic root of 2151512533 is about 1290.9654717735.

The spelling of 2151512533 in words is "two billion, one hundred fifty-one million, five hundred twelve thousand, five hundred thirty-three".