1143542051 has 8 divisors (see below), whose sum is σ = 1163516304. Its totient is φ = 1123607520.

The previous prime is 1143542047. The next prime is 1143542053. The reversal of 1143542051 is 1502453411.

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

It is a cyclic number.

It is not a de Polignac number, because 1143542051 - 2² = 1143542047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143542051.

It is not an unprimeable number, because it can be changed into a prime (1143542053) 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, 51416 + ... + 70218.

It is an arithmetic number, because the mean of its divisors is an integer number (145439538).

Almost surely, 2^1143542051 is an apocalyptic number.

1143542051 is a deficient number, since it is larger than the sum of its proper divisors (19974253).

1143542051 is an equidigital number, since it uses as much as digits as its factorization.

1143542051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19861.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1143542051 is about 33816.2985999355. The cubic root of 1143542051 is about 1045.7247327974.

Adding to 1143542051 its reverse (1502453411), we get a palindrome (2645995462).

The spelling of 1143542051 in words is "one billion, one hundred forty-three million, five hundred forty-two thousand, fifty-one".