140111711 has 4 divisors (see below), whose sum is σ = 143898552. Its totient is φ = 136324872.

The previous prime is 140111689. The next prime is 140111737. The reversal of 140111711 is 117111041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117111041 = 19 ⋅6163739.

It is not a de Polignac number, because 140111711 - 2¹⁴ = 140095327 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 140111711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140111771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1893365 + ... + 1893438.

It is an arithmetic number, because the mean of its divisors is an integer number (35974638).

Almost surely, 2^140111711 is an apocalyptic number.

140111711 is a deficient number, since it is larger than the sum of its proper divisors (3786841).

140111711 is an equidigital number, since it uses as much as digits as its factorization.

140111711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786840.

The product of its (nonzero) digits is 28, while the sum is 17.

The square root of 140111711 is about 11836.8792762282. The cubic root of 140111711 is about 519.3874826836.

Adding to 140111711 its reverse (117111041), we get a palindrome (257222752).

The spelling of 140111711 in words is "one hundred forty million, one hundred eleven thousand, seven hundred eleven".