140460500561 has 4 divisors (see below), whose sum is σ = 140476764324. Its totient is φ = 140444236800.

The previous prime is 140460500483. The next prime is 140460500603. The reversal of 140460500561 is 165005064041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 165005064041 = 126743 ⋅1301887.

It can be written as a sum of positive squares in 2 ways, for example, as 20159740225 + 120300760336 = 141985^2 + 346844^2 .

It is a cyclic number.

It is not a de Polignac number, because 140460500561 - 2²² = 140456306257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140460509561) 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, 8118920 + ... + 8136201.

It is an arithmetic number, because the mean of its divisors is an integer number (35119191081).

Almost surely, 2^140460500561 is an apocalyptic number.

It is an amenable number.

140460500561 is a deficient number, since it is larger than the sum of its proper divisors (16263763).

140460500561 is an equidigital number, since it uses as much as digits as its factorization.

140460500561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16263762.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 140460500561 in words is "one hundred forty billion, four hundred sixty million, five hundred thousand, five hundred sixty-one".