140575109 has 4 divisors (see below), whose sum is σ = 140599116. Its totient is φ = 140551104.

The previous prime is 140575081. The next prime is 140575139. The reversal of 140575109 is 901575041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 90307009 + 50268100 = 9503^2 + 7090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140575109 is a prime.

It is a super-3 number, since 3×140575109³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140575139) 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, 3197 + ... + 17069.

It is an arithmetic number, because the mean of its divisors is an integer number (35149779).

Almost surely, 2^140575109 is an apocalyptic number.

It is an amenable number.

140575109 is a deficient number, since it is larger than the sum of its proper divisors (24007).

140575109 is a wasteful number, since it uses less digits than its factorization.

140575109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24006.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 140575109 is about 11856.4374497570. The cubic root of 140575109 is about 519.9594507335.

The spelling of 140575109 in words is "one hundred forty million, five hundred seventy-five thousand, one hundred nine".