140334309 has 16 divisors (see below), whose sum is σ = 209304000. Its totient is φ = 92925648.

The previous prime is 140334289. The next prime is 140334317. The reversal of 140334309 is 903433041.

140334309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140334309 - 2⁸ = 140334053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140334379) 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, 13419 + ... + 21464.

It is an arithmetic number, because the mean of its divisors is an integer number (13081500).

Almost surely, 2^140334309 is an apocalyptic number.

It is an amenable number.

140334309 is a deficient number, since it is larger than the sum of its proper divisors (68969691).

140334309 is a wasteful number, since it uses less digits than its factorization.

140334309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35041 (or 35035 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 140334309 is about 11846.2782763195. The cubic root of 140334309 is about 519.6623905689.

The spelling of 140334309 in words is "one hundred forty million, three hundred thirty-four thousand, three hundred nine".