14001111 has 6 divisors (see below), whose sum is σ = 20223840. Its totient is φ = 9334068.

The previous prime is 14001107. The next prime is 14001121. The reversal of 14001111 is 11110041.

It is not a de Polignac number, because 14001111 - 2² = 14001107 is a prime.

It is a super-2 number, since 2×14001111² = 392062218468642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1555679 = 14001111 / (1 + 4 + 0 + 0 + 1 + 1 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 14001093 and 14001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14001121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 777831 + ... + 777848.

It is an arithmetic number, because the mean of its divisors is an integer number (3370640).

Almost surely, 2^14001111 is an apocalyptic number.

14001111 is a deficient number, since it is larger than the sum of its proper divisors (6222729).

14001111 is a wasteful number, since it uses less digits than its factorization.

14001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555685 (or 1555682 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 14001111 is about 3741.8058474485. The cubic root of 14001111 is about 241.0206016490.

Adding to 14001111 its reverse (11110041), we get a palindrome (25111152).

The spelling of 14001111 in words is "fourteen million, one thousand, one hundred eleven".