42145442135 has 16 divisors (see below), whose sum is σ = 56367900000. Its totient is φ = 30062877696.

The previous prime is 42145442117. The next prime is 42145442137. The reversal of 42145442135 is 53124454124.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42145442135 - 2¹⁸ = 42145179991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42145442095 and 42145442104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42145442137) 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, 13046510 + ... + 13049739.

It is an arithmetic number, because the mean of its divisors is an integer number (3522993750).

Almost surely, 2^42145442135 is an apocalyptic number.

42145442135 is a deficient number, since it is larger than the sum of its proper divisors (14222457865).

42145442135 is a wasteful number, since it uses less digits than its factorization.

42145442135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26096290.

The product of its digits is 76800, while the sum is 35.

Adding to 42145442135 its reverse (53124454124), we get a palindrome (95269896259).

The spelling of 42145442135 in words is "forty-two billion, one hundred forty-five million, four hundred forty-two thousand, one hundred thirty-five".