11451143 has 8 divisors (see below), whose sum is σ = 12923280. Its totient is φ = 10050880.

The previous prime is 11451137. The next prime is 11451157. The reversal of 11451143 is 34115411.

It is a happy number.

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 11451143 - 2¹⁰ = 11450119 is a prime.

It is a super-2 number, since 2×11451143² = 262257352012898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451113) 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, 17630 + ... + 18267.

It is an arithmetic number, because the mean of its divisors is an integer number (1615410).

Almost surely, 2^11451143 is an apocalyptic number.

11451143 is a deficient number, since it is larger than the sum of its proper divisors (1472137).

11451143 is a wasteful number, since it uses less digits than its factorization.

11451143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35937.

The product of its digits is 240, while the sum is 20.

The square root of 11451143 is about 3383.9537526391. The cubic root of 11451143 is about 225.3977688135.

Adding to 11451143 its reverse (34115411), we get a palindrome (45566554).

It can be divided in two parts, 11 and 451143, that added together give a palindrome (451154).

The spelling of 11451143 in words is "eleven million, four hundred fifty-one thousand, one hundred forty-three".