200408261 has 2 divisors, whose sum is σ = 200408262. Its totient is φ = 200408260.

The previous prime is 200408249. The next prime is 200408279. The reversal of 200408261 is 162804002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200222500 + 185761 = 14150^2 + 431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200408261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200408281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100204130 + 100204131.

It is an arithmetic number, because the mean of its divisors is an integer number (100204131).

Almost surely, 2^200408261 is an apocalyptic number.

It is an amenable number.

200408261 is a deficient number, since it is larger than the sum of its proper divisors (1).

200408261 is an equidigital number, since it uses as much as digits as its factorization.

200408261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 200408261 is about 14156.5624711651. The cubic root of 200408261 is about 585.2011979919.

The spelling of 200408261 in words is "two hundred million, four hundred eight thousand, two hundred sixty-one".