1143575513 has 2 divisors, whose sum is σ = 1143575514. Its totient is φ = 1143575512.

The previous prime is 1143575509. The next prime is 1143575527. The reversal of 1143575513 is 3155753411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 956788624 + 186786889 = 30932^2 + 13667^2 .

It is an emirp because it is prime and its reverse (3155753411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143575513 - 2² = 1143575509 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143575593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571787756 + 571787757.

It is an arithmetic number, because the mean of its divisors is an integer number (571787757).

Almost surely, 2^1143575513 is an apocalyptic number.

It is an amenable number.

1143575513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143575513 is an equidigital number, since it uses as much as digits as its factorization.

1143575513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 35.

The square root of 1143575513 is about 33816.7933577387. The cubic root of 1143575513 is about 1045.7349325972.

The spelling of 1143575513 in words is "one billion, one hundred forty-three million, five hundred seventy-five thousand, five hundred thirteen".