140304311 has 8 divisors (see below), whose sum is σ = 160473600. Its totient is φ = 120166488.

The previous prime is 140304293. The next prime is 140304343. The reversal of 140304311 is 113403041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140304311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140304311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140304371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2630 + ... + 16956.

It is an arithmetic number, because the mean of its divisors is an integer number (20059200).

Almost surely, 2^140304311 is an apocalyptic number.

140304311 is a deficient number, since it is larger than the sum of its proper divisors (20169289).

140304311 is a wasteful number, since it uses less digits than its factorization.

140304311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15733.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 140304311 is about 11845.0120725983. The cubic root of 140304311 is about 519.6253600822.

Adding to 140304311 its reverse (113403041), we get a palindrome (253707352).

The spelling of 140304311 in words is "one hundred forty million, three hundred four thousand, three hundred eleven".