140018311 has 8 divisors (see below), whose sum is σ = 143861760. Its totient is φ = 136210968.

The previous prime is 140018309. The next prime is 140018357. The reversal of 140018311 is 113810041.

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 140018311 - 2¹ = 140018309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140018371) 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, 1071 + ... + 16768.

It is an arithmetic number, because the mean of its divisors is an integer number (17982720).

Almost surely, 2^140018311 is an apocalyptic number.

140018311 is a deficient number, since it is larger than the sum of its proper divisors (3843449).

140018311 is a wasteful number, since it uses less digits than its factorization.

140018311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18053.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 140018311 is about 11832.9333218775. The cubic root of 140018311 is about 519.2720472362.

Adding to 140018311 its reverse (113810041), we get a palindrome (253828352).

The spelling of 140018311 in words is "one hundred forty million, eighteen thousand, three hundred eleven".