140018496247 has 4 divisors (see below), whose sum is σ = 160021138576. Its totient is φ = 120015853920.

The previous prime is 140018496187. The next prime is 140018496263. The reversal of 140018496247 is 742694810041.

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

It is a cyclic number.

It is not a de Polignac number, because 140018496247 - 2²³ = 140010107639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140018496197 and 140018496206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140018496347) 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, 10001321154 + ... + 10001321167.

It is an arithmetic number, because the mean of its divisors is an integer number (40005284644).

Almost surely, 2^140018496247 is an apocalyptic number.

140018496247 is a deficient number, since it is larger than the sum of its proper divisors (20002642329).

140018496247 is an equidigital number, since it uses as much as digits as its factorization.

140018496247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002642328.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 140018496247 in words is "one hundred forty billion, eighteen million, four hundred ninety-six thousand, two hundred forty-seven".