140155440042501 has 30 divisors (see below), whose sum is σ = 219316718672350. Its totient is φ = 86249501406432.

The previous prime is 140155440042437. The next prime is 140155440042539. The reversal of 140155440042501 is 105240044551041.

140155440042501 is a `hidden beast` number, since 1 + 40 + 1 + 554 + 40 + 0 + 4 + 25 + 0 + 1 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 105826504414401 + 34328935628100 = 10287201^2 + 5859090^2 .

It is not a de Polignac number, because 140155440042501 - 2⁶ = 140155440042437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140155440042551) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 272366926 + ... + 272881023.

Almost surely, 2^{140155440042501} is an apocalyptic number.

It is an amenable number.

140155440042501 is a deficient number, since it is larger than the sum of its proper divisors (79161278629849).

140155440042501 is an frugal number, since it uses more digits than its factorization.

140155440042501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545248007 (or 545247965 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 140155440042501 its reverse (105240044551041), we get a palindrome (245395484593542).

The spelling of 140155440042501 in words is "one hundred forty trillion, one hundred fifty-five billion, four hundred forty million, forty-two thousand, five hundred one".