1143020135 has 8 divisors (see below), whose sum is σ = 1394110176. Its totient is φ = 899425440.

The previous prime is 1143020113. The next prime is 1143020159. The reversal of 1143020135 is 5310203411.

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

It is not a de Polignac number, because 1143020135 - 2²⁴ = 1126242919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1873499 + ... + 1874108.

It is an arithmetic number, because the mean of its divisors is an integer number (174263772).

Almost surely, 2^1143020135 is an apocalyptic number.

1143020135 is a deficient number, since it is larger than the sum of its proper divisors (251090041).

1143020135 is an equidigital number, since it uses as much as digits as its factorization.

1143020135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747673.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1143020135 is about 33808.5807894978. The cubic root of 1143020135 is about 1045.5656179600.

Adding to 1143020135 its reverse (5310203411), we get a palindrome (6453223546).

The spelling of 1143020135 in words is "one billion, one hundred forty-three million, twenty thousand, one hundred thirty-five".