1143548225 has 6 divisors (see below), whose sum is σ = 1417999830. Its totient is φ = 914838560.

The previous prime is 1143548209. The next prime is 1143548251. The reversal of 1143548225 is 5228453411.

It can be written as a sum of positive squares in 3 ways, for example, as 269222464 + 874325761 = 16408^2 + 29569^2 .

It is not a de Polignac number, because 1143548225 - 2⁴ = 1143548209 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22870940 + ... + 22870989.

It is an arithmetic number, because the mean of its divisors is an integer number (236333305).

Almost surely, 2^1143548225 is an apocalyptic number.

It is an amenable number.

1143548225 is a deficient number, since it is larger than the sum of its proper divisors (274451605).

1143548225 is an equidigital number, since it uses as much as digits as its factorization.

1143548225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45741939 (or 45741934 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 1143548225 is about 33816.3898871538. The cubic root of 1143548225 is about 1045.7266147550.

The spelling of 1143548225 in words is "one billion, one hundred forty-three million, five hundred forty-eight thousand, two hundred twenty-five".