42455140142 has 4 divisors (see below), whose sum is σ = 63682710216. Its totient is φ = 21227570070.

The previous prime is 42455140141. The next prime is 42455140151. The reversal of 42455140142 is 24104155424.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 42455140099 and 42455140108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42455140141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10613785034 + ... + 10613785037.

It is an arithmetic number, because the mean of its divisors is an integer number (15920677554).

Almost surely, 2^42455140142 is an apocalyptic number.

42455140142 is a deficient number, since it is larger than the sum of its proper divisors (21227570074).

42455140142 is a wasteful number, since it uses less digits than its factorization.

42455140142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21227570073.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 42455140142 its reverse (24104155424), we get a palindrome (66559295566).

The spelling of 42455140142 in words is "forty-two billion, four hundred fifty-five million, one hundred forty thousand, one hundred forty-two".