2152007999 has 4 divisors (see below), whose sum is σ = 2152748664. Its totient is φ = 2151267336.

The previous prime is 2152007929. The next prime is 2152008013. The reversal of 2152007999 is 9997002512.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152007999 is a prime.

It is a super-2 number, since 2×2152007999² = 9262276855519968002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152007929) 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, 365957 + ... + 371790.

It is an arithmetic number, because the mean of its divisors is an integer number (538187166).

Almost surely, 2^2152007999 is an apocalyptic number.

2152007999 is a deficient number, since it is larger than the sum of its proper divisors (740665).

2152007999 is an equidigital number, since it uses as much as digits as its factorization.

2152007999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740664.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 2152007999 is about 46389.7402342371. The cubic root of 2152007999 is about 1291.0645618160.

The spelling of 2152007999 in words is "two billion, one hundred fifty-two million, seven thousand, nine hundred ninety-nine".