42351603 has 16 divisors (see below), whose sum is σ = 66038016. Its totient is φ = 23637600.

The previous prime is 42351593. The next prime is 42351613. The reversal of 42351603 is 30615324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42351593) and next prime (42351613).

It is not a de Polignac number, because 42351603 - 2¹⁰ = 42350579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42351613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22548 + ... + 24353.

It is an arithmetic number, because the mean of its divisors is an integer number (4127376).

Almost surely, 2^42351603 is an apocalyptic number.

42351603 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42351603 is a deficient number, since it is larger than the sum of its proper divisors (23686413).

42351603 is a wasteful number, since it uses less digits than its factorization.

42351603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46954.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 42351603 is about 6507.8109222687. The cubic root of 42351603 is about 348.5699554989.

Adding to 42351603 its reverse (30615324), we get a palindrome (72966927).

The spelling of 42351603 in words is "forty-two million, three hundred fifty-one thousand, six hundred three".