42203761 has 2 divisors, whose sum is σ = 42203762. Its totient is φ = 42203760.

The previous prime is 42203753. The next prime is 42203767. The reversal of 42203761 is 16730224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34586161 + 7617600 = 5881^2 + 2760^2 .

It is a cyclic number.

It is not a de Polignac number, because 42203761 - 2³ = 42203753 is a prime.

It is not a weakly prime, because it can be changed into another prime (42203767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101880 + 21101881.

It is an arithmetic number, because the mean of its divisors is an integer number (21101881).

Almost surely, 2^42203761 is an apocalyptic number.

It is an amenable number.

42203761 is a deficient number, since it is larger than the sum of its proper divisors (1).

42203761 is an equidigital number, since it uses as much as digits as its factorization.

42203761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 42203761 is about 6496.4421801475. The cubic root of 42203761 is about 348.1638838132.

Adding to 42203761 its reverse (16730224), we get a palindrome (58933985).

The spelling of 42203761 in words is "forty-two million, two hundred three thousand, seven hundred sixty-one".