4012532009 has 2 divisors, whose sum is σ = 4012532010. Its totient is φ = 4012532008.

The previous prime is 4012531969. The next prime is 4012532021. The reversal of 4012532009 is 9002352104.

4012532009 is digitally balanced in base 2 and base 3, because in such bases 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., 3840528784 + 172003225 = 61972^2 + 13115^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012532009 - 2¹² = 4012527913 is a prime.

It is a super-2 number, since 2×4012532009² = 32200826246499152162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4012532099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006266004 + 2006266005.

It is an arithmetic number, because the mean of its divisors is an integer number (2006266005).

Almost surely, 2^4012532009 is an apocalyptic number.

It is an amenable number.

4012532009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012532009 is an equidigital number, since it uses as much as digits as its factorization.

4012532009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 4012532009 is about 63344.5499549882. The cubic root of 4012532009 is about 1589.0571007247.

The spelling of 4012532009 in words is "four billion, twelve million, five hundred thirty-two thousand, nine".