142555368442 has 4 divisors (see below), whose sum is σ = 213833052666. Its totient is φ = 71277684220.

The previous prime is 142555368437. The next prime is 142555368443. The reversal of 142555368442 is 244863555241.

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

It can be written as a sum of positive squares in only one way, i.e., 108292988241 + 34262380201 = 329079^2 + 185101^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (142555368443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35638842109 + ... + 35638842112.

Almost surely, 2^142555368442 is an apocalyptic number.

142555368442 is a deficient number, since it is larger than the sum of its proper divisors (71277684224).

142555368442 is an equidigital number, since it uses as much as digits as its factorization.

142555368442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71277684223.

The product of its digits is 4608000, while the sum is 49.

The spelling of 142555368442 in words is "one hundred forty-two billion, five hundred fifty-five million, three hundred sixty-eight thousand, four hundred forty-two".