20363461 has 2 divisors, whose sum is σ = 20363462. Its totient is φ = 20363460.

The previous prime is 20363449. The next prime is 20363477. The reversal of 20363461 is 16436302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19412836 + 950625 = 4406^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 20363461 - 2¹¹ = 20361413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20303461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181730 + 10181731.

It is an arithmetic number, because the mean of its divisors is an integer number (10181731).

Almost surely, 2^20363461 is an apocalyptic number.

It is an amenable number.

20363461 is a deficient number, since it is larger than the sum of its proper divisors (1).

20363461 is an equidigital number, since it uses as much as digits as its factorization.

20363461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20363461 is about 4512.5891680941. The cubic root of 20363461 is about 273.0762085587.

Adding to 20363461 its reverse (16436302), we get a palindrome (36799763).

The spelling of 20363461 in words is "twenty million, three hundred sixty-three thousand, four hundred sixty-one".