140158312638 has 16 divisors (see below), whose sum is σ = 284500456320. Its totient is φ = 46022132376.

The previous prime is 140158312633. The next prime is 140158312669. The reversal of 140158312638 is 836213851041.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 140158312638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140158312633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174325858 + ... + 174326661.

It is an arithmetic number, because the mean of its divisors is an integer number (17781278520).

Almost surely, 2^140158312638 is an apocalyptic number.

140158312638 is an abundant number, since it is smaller than the sum of its proper divisors (144342143682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140158312638 is a wasteful number, since it uses less digits than its factorization.

140158312638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348652591.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 140158312638 in words is "one hundred forty billion, one hundred fifty-eight million, three hundred twelve thousand, six hundred thirty-eight".