140917539 has 16 divisors (see below), whose sum is σ = 227363328. Its totient is φ = 75787392.

The previous prime is 140917531. The next prime is 140917559. The reversal of 140917539 is 935719041.

It is a happy number.

It is not a de Polignac number, because 140917539 - 2³ = 140917531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140917497 and 140917506.

It is not an unprimeable number, because it can be changed into a prime (140917531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197007 + ... + 197720.

It is an arithmetic number, because the mean of its divisors is an integer number (14210208).

Almost surely, 2^140917539 is an apocalyptic number.

140917539 is a deficient number, since it is larger than the sum of its proper divisors (86445789).

140917539 is a wasteful number, since it uses less digits than its factorization.

140917539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394754.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 140917539 is about 11870.8693447447. The cubic root of 140917539 is about 520.3813019408.

The spelling of 140917539 in words is "one hundred forty million, nine hundred seventeen thousand, five hundred thirty-nine".