2152712009 has 4 divisors (see below), whose sum is σ = 2460242304. Its totient is φ = 1845181716.

The previous prime is 2152711969. The next prime is 2152712039. The reversal of 2152712009 is 9002172512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2152712009 - 2¹² = 2152707913 is a prime.

It is a super-3 number, since 3×2152712009³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152712039) 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, 153765137 + ... + 153765150.

It is an arithmetic number, because the mean of its divisors is an integer number (615060576).

Almost surely, 2^2152712009 is an apocalyptic number.

It is an amenable number.

2152712009 is a deficient number, since it is larger than the sum of its proper divisors (307530295).

2152712009 is an equidigital number, since it uses as much as digits as its factorization.

2152712009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307530294.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 2152712009 is about 46397.3276062318. The cubic root of 2152712009 is about 1291.2053331739.

The spelling of 2152712009 in words is "two billion, one hundred fifty-two million, seven hundred twelve thousand, nine".