1143023151 has 4 divisors (see below), whose sum is σ = 1524030872. Its totient is φ = 762015432.

The previous prime is 1143023143. The next prime is 1143023153. The reversal of 1143023151 is 1513203411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1143023151 - 2³ = 1143023143 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 (1143023153) 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, 190503856 + ... + 190503861.

It is an arithmetic number, because the mean of its divisors is an integer number (381007718).

Almost surely, 2^1143023151 is an apocalyptic number.

1143023151 is a deficient number, since it is larger than the sum of its proper divisors (381007721).

1143023151 is an equidigital number, since it uses as much as digits as its factorization.

1143023151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381007720.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1143023151 is about 33808.6253935294. The cubic root of 1143023151 is about 1045.5665375773.

Adding to 1143023151 its reverse (1513203411), we get a palindrome (2656226562).

The spelling of 1143023151 in words is "one billion, one hundred forty-three million, twenty-three thousand, one hundred fifty-one".