140565155993 has 4 divisors (see below), whose sum is σ = 140567351988. Its totient is φ = 140562960000.

The previous prime is 140565155893. The next prime is 140565156079. The reversal of 140565155993 is 399551565041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61947725449 + 78617430544 = 248893^2 + 280388^2 .

It is a cyclic number.

It is not a de Polignac number, because 140565155993 - 2¹² = 140565151897 is a prime.

It is a super-3 number, since 3×140565155993³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140565155693) 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, 999008 + ... + 1130993.

It is an arithmetic number, because the mean of its divisors is an integer number (35141837997).

Almost surely, 2^140565155993 is an apocalyptic number.

It is an amenable number.

140565155993 is a deficient number, since it is larger than the sum of its proper divisors (2195995).

140565155993 is an equidigital number, since it uses as much as digits as its factorization.

140565155993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195994.

The product of its (nonzero) digits is 3645000, while the sum is 53.

The spelling of 140565155993 in words is "one hundred forty billion, five hundred sixty-five million, one hundred fifty-five thousand, nine hundred ninety-three".