205461401 has 2 divisors, whose sum is σ = 205461402. Its totient is φ = 205461400.

The previous prime is 205461349. The next prime is 205461409. The reversal of 205461401 is 104164502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204461401 + 1000000 = 14299^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 205461401 - 2¹⁰ = 205460377 is a prime.

It is not a weakly prime, because it can be changed into another prime (205461409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102730700 + 102730701.

It is an arithmetic number, because the mean of its divisors is an integer number (102730701).

Almost surely, 2^205461401 is an apocalyptic number.

It is an amenable number.

205461401 is a deficient number, since it is larger than the sum of its proper divisors (1).

205461401 is an equidigital number, since it uses as much as digits as its factorization.

205461401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 205461401 is about 14333.9248288806. The cubic root of 205461401 is about 590.0788949366.

The spelling of 205461401 in words is "two hundred five million, four hundred sixty-one thousand, four hundred one".