1143455051 has 4 divisors (see below), whose sum is σ = 1193170512. Its totient is φ = 1093739592.

The previous prime is 1143455029. The next prime is 1143455063. The reversal of 1143455051 is 1505543411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1505543411 = 41 ⋅36720571.

It is a cyclic number.

It is not a de Polignac number, because 1143455051 - 2¹⁸ = 1143192907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143455081) 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, 24857696 + ... + 24857741.

It is an arithmetic number, because the mean of its divisors is an integer number (298292628).

Almost surely, 2^1143455051 is an apocalyptic number.

1143455051 is a deficient number, since it is larger than the sum of its proper divisors (49715461).

1143455051 is an equidigital number, since it uses as much as digits as its factorization.

1143455051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49715460.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1143455051 is about 33815.0122135125. The cubic root of 1143455051 is about 1045.6982127527.

Adding to 1143455051 its reverse (1505543411), we get a palindrome (2648998462).

The spelling of 1143455051 in words is "one billion, one hundred forty-three million, four hundred fifty-five thousand, fifty-one".