140435554121 has 8 divisors (see below), whose sum is σ = 142431390144. Its totient is φ = 138440214640.

The previous prime is 140435554109. The next prime is 140435554141. The reversal of 140435554121 is 121455534041.

It is a happy number.

140435554121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 140435554121 - 2⁶ = 140435554057 is a prime.

It is a super-2 number, since 2×140435554121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140435554141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465275 + ... + 705231.

It is an arithmetic number, because the mean of its divisors is an integer number (17803923768).

Almost surely, 2^140435554121 is an apocalyptic number.

It is an amenable number.

140435554121 is a deficient number, since it is larger than the sum of its proper divisors (1995836023).

140435554121 is an equidigital number, since it uses as much as digits as its factorization.

140435554121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248271.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 140435554121 in words is "one hundred forty billion, four hundred thirty-five million, five hundred fifty-four thousand, one hundred twenty-one".