2192972057 has 2 divisors, whose sum is σ = 2192972058. Its totient is φ = 2192972056.

The previous prime is 2192971999. The next prime is 2192972059. The reversal of 2192972057 is 7502792912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1594484761 + 598487296 = 39931^2 + 24464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2192972057 - 2⁶ = 2192971993 is a prime.

It is a super-2 number, since 2×2192972057² = 9618252885565622498, which contains 22 as substring.

Together with 2192972059, 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 = 2192971999 and 2192972017.

It is not a weakly prime, because it can be changed into another prime (2192972059) 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, 1096486028 + 1096486029.

It is an arithmetic number, because the mean of its divisors is an integer number (1096486029).

Almost surely, 2^2192972057 is an apocalyptic number.

It is an amenable number.

2192972057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2192972057 is an equidigital number, since it uses as much as digits as its factorization.

2192972057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 2192972057 is about 46829.1795465178. The cubic root of 2192972057 is about 1299.2050479097.

The spelling of 2192972057 in words is "two billion, one hundred ninety-two million, nine hundred seventy-two thousand, fifty-seven".