1143153351 has 8 divisors (see below), whose sum is σ = 1693560560. Its totient is φ = 762102216.

The previous prime is 1143153329. The next prime is 1143153371. The reversal of 1143153351 is 1533513411.

It is a happy number.

1143153351 is a `hidden beast` number, since 1 + 14 + 315 + 335 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1143153351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 42339013 = 1143153351 / (1 + 1 + 4 + 3 + 1 + 5 + 3 + 3 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143153371) 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, 21169480 + ... + 21169533.

It is an arithmetic number, because the mean of its divisors is an integer number (211695070).

Almost surely, 2^1143153351 is an apocalyptic number.

1143153351 is a deficient number, since it is larger than the sum of its proper divisors (550407209).

1143153351 is an equidigital number, since it uses as much as digits as its factorization.

1143153351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42339022 (or 42339016 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1143153351 is about 33810.5508828235. The cubic root of 1143153351 is about 1045.6062356926.

Adding to 1143153351 its reverse (1533513411), we get a palindrome (2676666762).

The spelling of 1143153351 in words is "one billion, one hundred forty-three million, one hundred fifty-three thousand, three hundred fifty-one".