140155440042538 has 8 divisors (see below), whose sum is σ = 221298063225120. Its totient is φ = 66389418967500.

The previous prime is 140155440042437. The next prime is 140155440042539. The reversal of 140155440042538 is 835240044551041.

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 (140155440042539) 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, 1844150526838 + ... + 1844150526913.

It is an arithmetic number, because the mean of its divisors is an integer number (27662257903140).

Almost surely, 2^{140155440042538} is an apocalyptic number.

140155440042538 is a deficient number, since it is larger than the sum of its proper divisors (81142623182582).

140155440042538 is a wasteful number, since it uses less digits than its factorization.

140155440042538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688301053772.

The product of its (nonzero) digits is 1536000, while the sum is 46.

Adding to 140155440042538 its reverse (835240044551041), we get a palindrome (975395484593579).

The spelling of 140155440042538 in words is "one hundred forty trillion, one hundred fifty-five billion, four hundred forty million, forty-two thousand, five hundred thirty-eight".