42481099 has 2 divisors, whose sum is σ = 42481100. Its totient is φ = 42481098.

The previous prime is 42481063. The next prime is 42481133. The reversal of 42481099 is 99018424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42481099 - 2⁹ = 42480587 is a prime.

It is not a weakly prime, because it can be changed into another prime (42481199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21240549 + 21240550.

It is an arithmetic number, because the mean of its divisors is an integer number (21240550).

Almost surely, 2^42481099 is an apocalyptic number.

42481099 is a deficient number, since it is larger than the sum of its proper divisors (1).

42481099 is an equidigital number, since it uses as much as digits as its factorization.

42481099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 42481099 is about 6517.7526034669. The cubic root of 42481099 is about 348.9248612881.

The spelling of 42481099 in words is "forty-two million, four hundred eighty-one thousand, ninety-nine".