2457647161 has 2 divisors, whose sum is σ = 2457647162. Its totient is φ = 2457647160.

The previous prime is 2457647147. The next prime is 2457647191. The reversal of 2457647161 is 1617467542.

2457647161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1438760761 + 1018886400 = 37931^2 + 31920^2 .

It is a cyclic number.

It is not a de Polignac number, because 2457647161 - 2²⁵ = 2424092729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2457647191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228823580 + 1228823581.

It is an arithmetic number, because the mean of its divisors is an integer number (1228823581).

Almost surely, 2^2457647161 is an apocalyptic number.

It is an amenable number.

2457647161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2457647161 is an equidigital number, since it uses as much as digits as its factorization.

2457647161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 2457647161 is about 49574.6624900261. The cubic root of 2457647161 is about 1349.5008966168.

The spelling of 2457647161 in words is "two billion, four hundred fifty-seven million, six hundred forty-seven thousand, one hundred sixty-one".