11142207 has 6 divisors (see below), whose sum is σ = 16094312. Its totient is φ = 7428132.

The previous prime is 11142181. The next prime is 11142211. The reversal of 11142207 is 70224111.

It is not a de Polignac number, because 11142207 - 2¹⁴ = 11125823 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 11142207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619003 + ... + 619020.

Almost surely, 2^11142207 is an apocalyptic number.

11142207 is a deficient number, since it is larger than the sum of its proper divisors (4952105).

11142207 is a wasteful number, since it uses less digits than its factorization.

11142207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238029 (or 1238026 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 11142207 is about 3337.9944577545. The cubic root of 11142207 is about 223.3522889284.

Adding to 11142207 its reverse (70224111), we get a palindrome (81366318).

It can be divided in two parts, 1114 and 2207, that added together give a triangular number (3321 = T₈₁).

The spelling of 11142207 in words is "eleven million, one hundred forty-two thousand, two hundred seven".