140504363657 has 6 divisors (see below), whose sum is σ = 163443851658. Its totient is φ = 120432311664.

The previous prime is 140504363611. The next prime is 140504363677. The reversal of 140504363657 is 756363405041.

It can be written as a sum of positive squares in only one way, i.e., 132511288441 + 7993075216 = 364021^2 + 89404^2 .

It is not a de Polignac number, because 140504363657 - 2¹⁰ = 140504362633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140504363677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1433717948 + ... + 1433718045.

It is an arithmetic number, because the mean of its divisors is an integer number (27240641943).

Almost surely, 2^140504363657 is an apocalyptic number.

It is an amenable number.

140504363657 is a deficient number, since it is larger than the sum of its proper divisors (22939488001).

140504363657 is an equidigital number, since it uses as much as digits as its factorization.

140504363657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867436007 (or 2867436000 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 44.

Adding to 140504363657 its reverse (756363405041), we get a palindrome (896867768698).

The spelling of 140504363657 in words is "one hundred forty billion, five hundred four million, three hundred sixty-three thousand, six hundred fifty-seven".