2152440539 has 2 divisors, whose sum is σ = 2152440540. Its totient is φ = 2152440538.

The previous prime is 2152440527. The next prime is 2152440541. The reversal of 2152440539 is 9350442512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2152440539 - 2¹² = 2152436443 is a prime.

It is a super-2 number, since 2×2152440539² = 9266000547861221042, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2152440541, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2152440499 and 2152440508.

It is not a weakly prime, because it can be changed into another prime (2152440599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076220269 + 1076220270.

It is an arithmetic number, because the mean of its divisors is an integer number (1076220270).

Almost surely, 2^2152440539 is an apocalyptic number.

2152440539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152440539 is an equidigital number, since it uses as much as digits as its factorization.

2152440539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 2152440539 is about 46394.4020222268. The cubic root of 2152440539 is about 1291.1510546258.

The spelling of 2152440539 in words is "two billion, one hundred fifty-two million, four hundred forty thousand, five hundred thirty-nine".