205432651 has 2 divisors, whose sum is σ = 205432652. Its totient is φ = 205432650.

The previous prime is 205432639. The next prime is 205432657. The reversal of 205432651 is 156234502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205432651 - 2⁷ = 205432523 is a prime.

It is not a weakly prime, because it can be changed into another prime (205432657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102716325 + 102716326.

It is an arithmetic number, because the mean of its divisors is an integer number (102716326).

Almost surely, 2^205432651 is an apocalyptic number.

205432651 is a deficient number, since it is larger than the sum of its proper divisors (1).

205432651 is an equidigital number, since it uses as much as digits as its factorization.

205432651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 205432651 is about 14332.9219282043. The cubic root of 205432651 is about 590.0513706109.

The spelling of 205432651 in words is "two hundred five million, four hundred thirty-two thousand, six hundred fifty-one".