140313309 has 8 divisors (see below), whose sum is σ = 196931040. Its totient is φ = 88618896.

The previous prime is 140313307. The next prime is 140313319. The reversal of 140313309 is 903313041.

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

It is not a de Polignac number, because 140313309 - 2¹ = 140313307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140313301) 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 7 ways as a sum of consecutive naturals, for example, 1230762 + ... + 1230875.

It is an arithmetic number, because the mean of its divisors is an integer number (24616380).

Almost surely, 2^140313309 is an apocalyptic number.

140313309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

140313309 is a deficient number, since it is larger than the sum of its proper divisors (56617731).

140313309 is a wasteful number, since it uses less digits than its factorization.

140313309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461659.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 140313309 is about 11845.3918888317. The cubic root of 140313309 is about 519.6364680541.

The spelling of 140313309 in words is "one hundred forty million, three hundred thirteen thousand, three hundred nine".