42491083 has 2 divisors, whose sum is σ = 42491084. Its totient is φ = 42491082.

The previous prime is 42491027. The next prime is 42491101. The reversal of 42491083 is 38019424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42491083 - 2⁹ = 42490571 is a prime.

It is not a weakly prime, because it can be changed into another prime (42491023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21245541 + 21245542.

It is an arithmetic number, because the mean of its divisors is an integer number (21245542).

Almost surely, 2^42491083 is an apocalyptic number.

42491083 is a deficient number, since it is larger than the sum of its proper divisors (1).

42491083 is an equidigital number, since it uses as much as digits as its factorization.

42491083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 42491083 is about 6518.5184666456. The cubic root of 42491083 is about 348.9521941727.

The spelling of 42491083 in words is "forty-two million, four hundred ninety-one thousand, eighty-three".