1143695248 has 10 divisors (see below), whose sum is σ = 2215909574. Its totient is φ = 571847616.

The previous prime is 1143695239. The next prime is 1143695249. The reversal of 1143695248 is 8425963411.

It can be written as a sum of positive squares in only one way, i.e., 1015824384 + 127870864 = 31872^2 + 11308^2 .

It is not an unprimeable number, because it can be changed into a prime (1143695249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35740461 + ... + 35740492.

Almost surely, 2^1143695248 is an apocalyptic number.

It is an amenable number.

1143695248 is a deficient number, since it is larger than the sum of its proper divisors (1072214326).

1143695248 is an equidigital number, since it uses as much as digits as its factorization.

1143695248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71480961 (or 71480955 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 1143695248 is about 33818.5636596234. The cubic root of 1143695248 is about 1045.7714282785.

The spelling of 1143695248 in words is "one billion, one hundred forty-three million, six hundred ninety-five thousand, two hundred forty-eight".