42158603 has 2 divisors, whose sum is σ = 42158604. Its totient is φ = 42158602.

The previous prime is 42158581. The next prime is 42158629. The reversal of 42158603 is 30685124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42158603 - 2¹⁶ = 42093067 is a prime.

It is not a weakly prime, because it can be changed into another prime (42158203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21079301 + 21079302.

It is an arithmetic number, because the mean of its divisors is an integer number (21079302).

Almost surely, 2^42158603 is an apocalyptic number.

42158603 is a deficient number, since it is larger than the sum of its proper divisors (1).

42158603 is an equidigital number, since it uses as much as digits as its factorization.

42158603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42158603 is about 6492.9656552303. The cubic root of 42158603 is about 348.0396611114.

The spelling of 42158603 in words is "forty-two million, one hundred fifty-eight thousand, six hundred three".