2132653657 has 2 divisors, whose sum is σ = 2132653658. Its totient is φ = 2132653656.

The previous prime is 2132653637. The next prime is 2132653661. The reversal of 2132653657 is 7563562312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1135420416 + 997233241 = 33696^2 + 31579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132653657 is a prime.

It is not a weakly prime, because it can be changed into another prime (2132653637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066326828 + 1066326829.

It is an arithmetic number, because the mean of its divisors is an integer number (1066326829).

Almost surely, 2^2132653657 is an apocalyptic number.

It is an amenable number.

2132653657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132653657 is an equidigital number, since it uses as much as digits as its factorization.

2132653657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 40.

The square root of 2132653657 is about 46180.6632369004. The cubic root of 2132653657 is about 1287.1824523935.

The spelling of 2132653657 in words is "two billion, one hundred thirty-two million, six hundred fifty-three thousand, six hundred fifty-seven".