431761441 has 2 divisors, whose sum is σ = 431761442. Its totient is φ = 431761440.

The previous prime is 431761433. The next prime is 431761481. The reversal of 431761441 is 144167134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376942225 + 54819216 = 19415^2 + 7404^2 .

It is a cyclic number.

It is not a de Polignac number, because 431761441 - 2³ = 431761433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431761481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215880720 + 215880721.

It is an arithmetic number, because the mean of its divisors is an integer number (215880721).

Almost surely, 2^431761441 is an apocalyptic number.

It is an amenable number.

431761441 is a deficient number, since it is larger than the sum of its proper divisors (1).

431761441 is an equidigital number, since it uses as much as digits as its factorization.

431761441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 431761441 is about 20778.8700607131. The cubic root of 431761441 is about 755.8134536180.

The spelling of 431761441 in words is "four hundred thirty-one million, seven hundred sixty-one thousand, four hundred forty-one".