423131461 has 2 divisors, whose sum is σ = 423131462. Its totient is φ = 423131460.

The previous prime is 423131417. The next prime is 423131473. The reversal of 423131461 is 164131324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423124900 + 6561 = 20570^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 423131461 - 2⁷ = 423131333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423131491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211565730 + 211565731.

It is an arithmetic number, because the mean of its divisors is an integer number (211565731).

Almost surely, 2^423131461 is an apocalyptic number.

It is an amenable number.

423131461 is a deficient number, since it is larger than the sum of its proper divisors (1).

423131461 is an equidigital number, since it uses as much as digits as its factorization.

423131461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 423131461 is about 20570.1594792068. The cubic root of 423131461 is about 750.7438315238.

Adding to 423131461 its reverse (164131324), we get a palindrome (587262785).

The spelling of 423131461 in words is "four hundred twenty-three million, one hundred thirty-one thousand, four hundred sixty-one".