140642541442 has 8 divisors (see below), whose sum is σ = 227191797756. Its totient is φ = 64911942192.

The previous prime is 140642541439. The next prime is 140642541443. The reversal of 140642541442 is 244145246041.

It can be written as a sum of positive squares in 2 ways, for example, as 134776360161 + 5866181281 = 367119^2 + 76591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (140642541443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2704664233 + ... + 2704664284.

Almost surely, 2^140642541442 is an apocalyptic number.

140642541442 is a deficient number, since it is larger than the sum of its proper divisors (86549256314).

140642541442 is a wasteful number, since it uses less digits than its factorization.

140642541442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409328532.

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 140642541442 its reverse (244145246041), we get a palindrome (384787787483).

The spelling of 140642541442 in words is "one hundred forty billion, six hundred forty-two million, five hundred forty-one thousand, four hundred forty-two".