140393637361 has 8 divisors (see below), whose sum is σ = 145257820200. Its totient is φ = 135530989440.

The previous prime is 140393637359. The next prime is 140393637367. The reversal of 140393637361 is 163736393041.

It can be written as a sum of positive squares in 4 ways, for example, as 1026561600 + 139367075761 = 32040^2 + 373319^2 .

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 140393637361 - 2¹ = 140393637359 is a prime.

It is a super-2 number, since 2×140393637361² (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 (140393637367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196066 + ... + 565003.

It is an arithmetic number, because the mean of its divisors is an integer number (18157227525).

Almost surely, 2^140393637361 is an apocalyptic number.

It is an amenable number.

140393637361 is a deficient number, since it is larger than the sum of its proper divisors (4864182839).

140393637361 is an equidigital number, since it uses as much as digits as its factorization.

140393637361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767459.

The product of its (nonzero) digits is 734832, while the sum is 46.

The spelling of 140393637361 in words is "one hundred forty billion, three hundred ninety-three million, six hundred thirty-seven thousand, three hundred sixty-one".