140525820349 has 16 divisors (see below), whose sum is σ = 145626508800. Its totient is φ = 135461652480.

The previous prime is 140525820343. The next prime is 140525820377. The reversal of 140525820349 is 943028525041.

It is a cyclic number.

It is not a de Polignac number, because 140525820349 - 2¹³ = 140525812157 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 (140525820343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8579842 + ... + 8596204.

It is an arithmetic number, because the mean of its divisors is an integer number (9101656800).

Almost surely, 2^140525820349 is an apocalyptic number.

It is an amenable number.

140525820349 is a deficient number, since it is larger than the sum of its proper divisors (5100688451).

140525820349 is a wasteful number, since it uses less digits than its factorization.

140525820349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17460.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 140525820349 in words is "one hundred forty billion, five hundred twenty-five million, eight hundred twenty thousand, three hundred forty-nine".