42151240135 has 4 divisors (see below), whose sum is σ = 50581488168. Its totient is φ = 33720992104.

The previous prime is 42151240093. The next prime is 42151240163. The reversal of 42151240135 is 53104215124.

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 42151240135 - 2¹⁹ = 42150715847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4215124009 + ... + 4215124018.

It is an arithmetic number, because the mean of its divisors is an integer number (12645372042).

Almost surely, 2^42151240135 is an apocalyptic number.

42151240135 is a deficient number, since it is larger than the sum of its proper divisors (8430248033).

42151240135 is an equidigital number, since it uses as much as digits as its factorization.

42151240135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8430248032.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 42151240135 its reverse (53104215124), we get a palindrome (95255455259).

The spelling of 42151240135 in words is "forty-two billion, one hundred fifty-one million, two hundred forty thousand, one hundred thirty-five".