140009516287 has 4 divisors (see below), whose sum is σ = 140024129976. Its totient is φ = 139994902600.

The previous prime is 140009516221. The next prime is 140009516323. The reversal of 140009516287 is 782615900041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140009516287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140009516587) 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, 7292464 + ... + 7311637.

It is an arithmetic number, because the mean of its divisors is an integer number (35006032494).

Almost surely, 2^140009516287 is an apocalyptic number.

140009516287 is a deficient number, since it is larger than the sum of its proper divisors (14613689).

140009516287 is an equidigital number, since it uses as much as digits as its factorization.

140009516287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14613688.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 140009516287 in words is "one hundred forty billion, nine million, five hundred sixteen thousand, two hundred eighty-seven".