11455143 has 8 divisors (see below), whose sum is σ = 17455488. Its totient is φ = 6545784.

The previous prime is 11455141. The next prime is 11455153. The reversal of 11455143 is 34155411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11455143 - 2¹ = 11455141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11455141) 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, 272721 + ... + 272762.

It is an arithmetic number, because the mean of its divisors is an integer number (2181936).

Almost surely, 2^11455143 is an apocalyptic number.

11455143 is a deficient number, since it is larger than the sum of its proper divisors (6000345).

11455143 is an equidigital number, since it uses as much as digits as its factorization.

11455143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545493.

The product of its digits is 1200, while the sum is 24.

The square root of 11455143 is about 3384.5447256610. The cubic root of 11455143 is about 225.4240103312.

The spelling of 11455143 in words is "eleven million, four hundred fifty-five thousand, one hundred forty-three".