42135223 has 8 divisors (see below), whose sum is σ = 45594416. Its totient is φ = 38707200.

The previous prime is 42135211. The next prime is 42135239. The reversal of 42135223 is 32253124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42135223 - 2¹³ = 42127031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42135194 and 42135203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42135253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4938 + ... + 10423.

It is an arithmetic number, because the mean of its divisors is an integer number (5699302).

Almost surely, 2^42135223 is an apocalyptic number.

42135223 is a deficient number, since it is larger than the sum of its proper divisors (3459193).

42135223 is a wasteful number, since it uses less digits than its factorization.

42135223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15585.

The product of its digits is 1440, while the sum is 22.

The square root of 42135223 is about 6491.1649955921. The cubic root of 42135223 is about 347.9753114779.

Adding to 42135223 its reverse (32253124), we get a palindrome (74388347).

The spelling of 42135223 in words is "forty-two million, one hundred thirty-five thousand, two hundred twenty-three".