140404135234042 has 8 divisors (see below), whose sum is σ = 210612766137300. Its totient is φ = 70199879854944.

The previous prime is 140404135233877. The next prime is 140404135234093. The reversal of 140404135234042 is 240432531404041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 122788982078361 + 17615153155681 = 11081019^2 + 4197041^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 140404135233992 and 140404135234010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093800817 + ... + 1093929172.

Almost surely, 2^{140404135234042} is an apocalyptic number.

140404135234042 is a deficient number, since it is larger than the sum of its proper divisors (70208630903258).

140404135234042 is a wasteful number, since it uses less digits than its factorization.

140404135234042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187762080.

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 140404135234042 its reverse (240432531404041), we get a palindrome (380836666638083).

The spelling of 140404135234042 in words is "one hundred forty trillion, four hundred four billion, one hundred thirty-five million, two hundred thirty-four thousand, forty-two".