2723157109 has 2 divisors, whose sum is σ = 2723157110. Its totient is φ = 2723157108.

The previous prime is 2723157091. The next prime is 2723157113. The reversal of 2723157109 is 9017513272.

Together with previous prime (2723157091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1725987025 + 997170084 = 41545^2 + 31578^2 .

It is a cyclic number.

It is not a de Polignac number, because 2723157109 - 2²⁵ = 2689602677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2723157509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361578554 + 1361578555.

It is an arithmetic number, because the mean of its divisors is an integer number (1361578555).

Almost surely, 2^2723157109 is an apocalyptic number.

It is an amenable number.

2723157109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2723157109 is an equidigital number, since it uses as much as digits as its factorization.

2723157109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 2723157109 is about 52183.8778647199. The cubic root of 2723157109 is about 1396.4462776054.

The spelling of 2723157109 in words is "two billion, seven hundred twenty-three million, one hundred fifty-seven thousand, one hundred nine".