140532842497 has 4 divisors (see below), whose sum is σ = 141822134740. Its totient is φ = 139243550256.

The previous prime is 140532842479. The next prime is 140532842533. The reversal of 140532842497 is 794248235041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794248235041 = 43 ⋅18470889187.

It can be written as a sum of positive squares in 2 ways, for example, as 93976581136 + 46556261361 = 306556^2 + 215769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140532842497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140532842497.

It is not an unprimeable number, because it can be changed into a prime (140538842497) 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, 644645958 + ... + 644646175.

It is an arithmetic number, because the mean of its divisors is an integer number (35455533685).

Almost surely, 2^140532842497 is an apocalyptic number.

It is an amenable number.

140532842497 is a deficient number, since it is larger than the sum of its proper divisors (1289292243).

140532842497 is a wasteful number, since it uses less digits than its factorization.

140532842497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289292242.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 140532842497 in words is "one hundred forty billion, five hundred thirty-two million, eight hundred forty-two thousand, four hundred ninety-seven".