2152350817 has 4 divisors (see below), whose sum is σ = 2152962196. Its totient is φ = 2151739440.

The previous prime is 2152350769. The next prime is 2152350847. The reversal of 2152350817 is 7180532512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 465523776 + 1686827041 = 21576^2 + 41071^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152350817 - 2¹¹ = 2152348769 is a prime.

It is a super-2 number, since 2×2152350817² = 9265228078881134978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152350847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300378 + ... + 307459.

It is an arithmetic number, because the mean of its divisors is an integer number (538240549).

Almost surely, 2^2152350817 is an apocalyptic number.

It is an amenable number.

2152350817 is a deficient number, since it is larger than the sum of its proper divisors (611379).

2152350817 is an equidigital number, since it uses as much as digits as its factorization.

2152350817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611378.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 2152350817 is about 46393.4350635949. The cubic root of 2152350817 is about 1291.1331143293.

The spelling of 2152350817 in words is "two billion, one hundred fifty-two million, three hundred fifty thousand, eight hundred seventeen".