140309755 has 8 divisors (see below), whose sum is σ = 178276032. Its totient is φ = 105644928.

The previous prime is 140309713. The next prime is 140309761. The reversal of 140309755 is 557903041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140309755 - 2²¹ = 138212603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140309755.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825267 + ... + 825436.

It is an arithmetic number, because the mean of its divisors is an integer number (22284504).

Almost surely, 2^140309755 is an apocalyptic number.

140309755 is a deficient number, since it is larger than the sum of its proper divisors (37966277).

140309755 is a wasteful number, since it uses less digits than its factorization.

140309755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650725.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 140309755 is about 11845.2418717390. The cubic root of 140309755 is about 519.6320807212.

The spelling of 140309755 in words is "one hundred forty million, three hundred nine thousand, seven hundred fifty-five".