203231461 has 2 divisors, whose sum is σ = 203231462. Its totient is φ = 203231460.

The previous prime is 203231423. The next prime is 203231503. The reversal of 203231461 is 164132302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168350625 + 34880836 = 12975^2 + 5906^2 .

It is a cyclic number.

It is not a de Polignac number, because 203231461 - 2⁹ = 203230949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203231401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101615730 + 101615731.

It is an arithmetic number, because the mean of its divisors is an integer number (101615731).

Almost surely, 2^203231461 is an apocalyptic number.

It is an amenable number.

203231461 is a deficient number, since it is larger than the sum of its proper divisors (1).

203231461 is an equidigital number, since it uses as much as digits as its factorization.

203231461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 203231461 is about 14255.9272234394. The cubic root of 203231461 is about 587.9363516109.

Adding to 203231461 its reverse (164132302), we get a palindrome (367363763).

The spelling of 203231461 in words is "two hundred three million, two hundred thirty-one thousand, four hundred sixty-one".