140045347505 has 16 divisors (see below), whose sum is σ = 198257746944. Its totient is φ = 92933317440.

The previous prime is 140045347447. The next prime is 140045347529. The reversal of 140045347505 is 505743540041.

It is not a de Polignac number, because 140045347505 - 2³⁰ = 138971605681 is a prime.

It is a super-4 number, since 4×140045347505⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64535942 + ... + 64538111.

It is an arithmetic number, because the mean of its divisors is an integer number (12391109184).

Almost surely, 2^140045347505 is an apocalyptic number.

It is an amenable number.

140045347505 is a deficient number, since it is larger than the sum of its proper divisors (58212399439).

140045347505 is a wasteful number, since it uses less digits than its factorization.

140045347505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129074096.

The product of its (nonzero) digits is 168000, while the sum is 38.

Adding to 140045347505 its reverse (505743540041), we get a palindrome (645788887546).

The spelling of 140045347505 in words is "one hundred forty billion, forty-five million, three hundred forty-seven thousand, five hundred five".