2157095539 has 2 divisors, whose sum is σ = 2157095540. Its totient is φ = 2157095538.

The previous prime is 2157095491. The next prime is 2157095569. The reversal of 2157095539 is 9355907512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2157095539 - 2²⁵ = 2123541107 is a prime.

It is a super-2 number, since 2×2157095539² = 9306122328747401042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2157095569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078547769 + 1078547770.

It is an arithmetic number, because the mean of its divisors is an integer number (1078547770).

Almost surely, 2^2157095539 is an apocalyptic number.

2157095539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2157095539 is an equidigital number, since it uses as much as digits as its factorization.

2157095539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 425250, while the sum is 46.

The square root of 2157095539 is about 46444.5426180515. The cubic root of 2157095539 is about 1292.0811586163.

The spelling of 2157095539 in words is "two billion, one hundred fifty-seven million, ninety-five thousand, five hundred thirty-nine".