1143541415 has 8 divisors (see below), whose sum is σ = 1374029568. Its totient is φ = 913646560.

The previous prime is 1143541411. The next prime is 1143541417. The reversal of 1143541415 is 5141453411.

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

It is not a de Polignac number, because 1143541415 - 2² = 1143541411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143541411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144071 + ... + 151800.

It is an arithmetic number, because the mean of its divisors is an integer number (171753696).

Almost surely, 2^1143541415 is an apocalyptic number.

1143541415 is a deficient number, since it is larger than the sum of its proper divisors (230488153).

1143541415 is an equidigital number, since it uses as much as digits as its factorization.

1143541415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296649.

The product of its digits is 4800, while the sum is 29.

The square root of 1143541415 is about 33816.2891961847. The cubic root of 1143541415 is about 1045.7245389317.

Adding to 1143541415 its reverse (5141453411), we get a palindrome (6284994826).

The spelling of 1143541415 in words is "one billion, one hundred forty-three million, five hundred forty-one thousand, four hundred fifteen".