140659809346 has 12 divisors (see below), whose sum is σ = 245437014438. Its totient is φ = 60282775392.

The previous prime is 140659809341. The next prime is 140659809349. The reversal of 140659809346 is 643908956041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 131362028721 + 9297780625 = 362439^2 + 96425^2 .

It is not an unprimeable number, because it can be changed into a prime (140659809341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 717651991 + ... + 717652186.

Almost surely, 2^140659809346 is an apocalyptic number.

140659809346 is a deficient number, since it is larger than the sum of its proper divisors (104777205092).

140659809346 is a wasteful number, since it uses less digits than its factorization.

140659809346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435304193 (or 1435304186 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 140659809346 in words is "one hundred forty billion, six hundred fifty-nine million, eight hundred nine thousand, three hundred forty-six".