2151552443 has 2 divisors, whose sum is σ = 2151552444. Its totient is φ = 2151552442.

The previous prime is 2151552421. The next prime is 2151552461. The reversal of 2151552443 is 3442551512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151552443 - 2⁸ = 2151552187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151552413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075776221 + 1075776222.

It is an arithmetic number, because the mean of its divisors is an integer number (1075776222).

Almost surely, 2^2151552443 is an apocalyptic number.

2151552443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151552443 is an equidigital number, since it uses as much as digits as its factorization.

2151552443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 32.

The square root of 2151552443 is about 46384.8298800373. The cubic root of 2151552443 is about 1290.9734540824.

The spelling of 2151552443 in words is "two billion, one hundred fifty-one million, five hundred fifty-two thousand, four hundred forty-three".