42331451 has 2 divisors, whose sum is σ = 42331452. Its totient is φ = 42331450.

The previous prime is 42331427. The next prime is 42331463. The reversal of 42331451 is 15413324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42331451 - 2¹⁰ = 42330427 is a prime.

It is not a weakly prime, because it can be changed into another prime (42331481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21165725 + 21165726.

It is an arithmetic number, because the mean of its divisors is an integer number (21165726).

Almost surely, 2^42331451 is an apocalyptic number.

42331451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42331451 is an equidigital number, since it uses as much as digits as its factorization.

42331451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 42331451 is about 6506.2624447527. The cubic root of 42331451 is about 348.5146604949.

Adding to 42331451 its reverse (15413324), we get a palindrome (57744775).

The spelling of 42331451 in words is "forty-two million, three hundred thirty-one thousand, four hundred fifty-one".