1143025929 has 6 divisors (see below), whose sum is σ = 1651037466. Its totient is φ = 762017280.

The previous prime is 1143025909. The next prime is 1143025943. The reversal of 1143025929 is 9295203411.

It can be written as a sum of positive squares in only one way, i.e., 725763600 + 417262329 = 26940^2 + 20427^2 .

It is not a de Polignac number, because 1143025929 - 2⁹ = 1143025417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143025893 and 1143025902.

It is not an unprimeable number, because it can be changed into a prime (1143025909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63501432 + ... + 63501449.

It is an arithmetic number, because the mean of its divisors is an integer number (275172911).

Almost surely, 2^1143025929 is an apocalyptic number.

It is an amenable number.

1143025929 is a deficient number, since it is larger than the sum of its proper divisors (508011537).

1143025929 is a wasteful number, since it uses less digits than its factorization.

1143025929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127002887 (or 127002884 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1143025929 is about 33808.6664776947. Note that the first 3 decimals coincide. The cubic root of 1143025929 is about 1045.5673846238.

The spelling of 1143025929 in words is "one billion, one hundred forty-three million, twenty-five thousand, nine hundred twenty-nine".