42140003 has 4 divisors (see below), whose sum is σ = 43278960. Its totient is φ = 41001048.

The previous prime is 42139973. The next prime is 42140017. The reversal of 42140003 is 30004124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42140003 - 2⁶ = 42139939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42140003.

It is not an unprimeable number, because it can be changed into a prime (42140083) 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, 569423 + ... + 569496.

It is an arithmetic number, because the mean of its divisors is an integer number (10819740).

Almost surely, 2^42140003 is an apocalyptic number.

42140003 is a deficient number, since it is larger than the sum of its proper divisors (1138957).

42140003 is a wasteful number, since it uses less digits than its factorization.

42140003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138956.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 42140003 is about 6491.5331779172. The cubic root of 42140003 is about 347.9884695832.

Adding to 42140003 its reverse (30004124), we get a palindrome (72144127).

The spelling of 42140003 in words is "forty-two million, one hundred forty thousand, three".