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1143141 = 3381047

1143141 has 4 divisors (see below), whose sum is σ = 1524192. Its totient is φ = 762092.

The previous prime is 1143113. The next prime is 1143143. The reversal of 1143141 is 1413411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1413411 = 3471137.

It is a cyclic number.

It is not a de Polignac number, because 1143141 - 27 = 1143013 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143143) 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, 190521 + ... + 190526.

It is an arithmetic number, because the mean of its divisors is an integer number (381048).

21143141 is an apocalyptic number.

It is an amenable number.

1143141 is a deficient number, since it is larger than the sum of its proper divisors (381051).

1143141 is an equidigital number, since it uses as much as digits as its factorization.

1143141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381050.

The product of its digits is 48, while the sum is 15.

The square root of 1143141 is about 1069.1777214289. The cubic root of 1143141 is about 104.5602469989.

Adding to 1143141 its reverse (1413411), we get a palindrome (2556552).

The spelling of 1143141 in words is "one million, one hundred forty-three thousand, one hundred forty-one".

Divisors: 1 3 381047 1143141