201405863 has 2 divisors, whose sum is σ = 201405864. Its totient is φ = 201405862.

The previous prime is 201405847. The next prime is 201405877. The reversal of 201405863 is 368504102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201405863 - 2⁴ = 201405847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201405803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100702931 + 100702932.

It is an arithmetic number, because the mean of its divisors is an integer number (100702932).

Almost surely, 2^201405863 is an apocalyptic number.

201405863 is a deficient number, since it is larger than the sum of its proper divisors (1).

201405863 is an equidigital number, since it uses as much as digits as its factorization.

201405863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 201405863 is about 14191.7533448126. The cubic root of 201405863 is about 586.1706055848.

Adding to 201405863 its reverse (368504102), we get a palindrome (569909965).

The spelling of 201405863 in words is "two hundred one million, four hundred five thousand, eight hundred sixty-three".