2957823139 has 2 divisors, whose sum is σ = 2957823140. Its totient is φ = 2957823138.

The previous prime is 2957823059. The next prime is 2957823173. The reversal of 2957823139 is 9313287592.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2957823139 - 2¹³ = 2957814947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2957823092 and 2957823101.

It is not a weakly prime, because it can be changed into another prime (2957823199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1478911569 + 1478911570.

It is an arithmetic number, because the mean of its divisors is an integer number (1478911570).

Almost surely, 2^2957823139 is an apocalyptic number.

2957823139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2957823139 is an equidigital number, since it uses as much as digits as its factorization.

2957823139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 2957823139 is about 54385.8726049330. The cubic root of 2957823139 is about 1435.4588065390.

The spelling of 2957823139 in words is "two billion, nine hundred fifty-seven million, eight hundred twenty-three thousand, one hundred thirty-nine".