42541903 has 4 divisors (see below), whose sum is σ = 42555280. Its totient is φ = 42528528.

The previous prime is 42541879. The next prime is 42541913. The reversal of 42541903 is 30914524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42541903 - 2⁹ = 42541391 is a prime.

It is a super-2 number, since 2×42541903² = 3619627021722818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42541913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126 + ... + 9292.

It is an arithmetic number, because the mean of its divisors is an integer number (10638820).

Almost surely, 2^42541903 is an apocalyptic number.

42541903 is a deficient number, since it is larger than the sum of its proper divisors (13377).

42541903 is an equidigital number, since it uses as much as digits as its factorization.

42541903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13376.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42541903 is about 6522.4154268185. The cubic root of 42541903 is about 349.0912561751.

The spelling of 42541903 in words is "forty-two million, five hundred forty-one thousand, nine hundred three".