42135503 has 8 divisors (see below), whose sum is σ = 44901072. Its totient is φ = 39401856.

The previous prime is 42135497. The next prime is 42135523. The reversal of 42135503 is 30553124.

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 42135503 - 2⁶ = 42135439 is a prime.

It is a super-2 number, since 2×42135503² = 3550801226126018, 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 (42135523) 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, 5225 + ... + 10562.

It is an arithmetic number, because the mean of its divisors is an integer number (5612634).

Almost surely, 2^42135503 is an apocalyptic number.

42135503 is a deficient number, since it is larger than the sum of its proper divisors (2765569).

42135503 is a wasteful number, since it uses less digits than its factorization.

42135503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 42135503 is about 6491.1865633334. The cubic root of 42135503 is about 347.9760822730.

Adding to 42135503 its reverse (30553124), we get a palindrome (72688627).

The spelling of 42135503 in words is "forty-two million, one hundred thirty-five thousand, five hundred three".