1147575553 has 2 divisors, whose sum is σ = 1147575554. Its totient is φ = 1147575552.

The previous prime is 1147575551. The next prime is 1147575607. The reversal of 1147575553 is 3555757411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147312384 + 263169 = 33872^2 + 513^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147575553 - 2¹ = 1147575551 is a prime.

Together with 1147575551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1147575551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573787776 + 573787777.

It is an arithmetic number, because the mean of its divisors is an integer number (573787777).

Almost surely, 2^1147575553 is an apocalyptic number.

It is an amenable number.

1147575553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147575553 is an equidigital number, since it uses as much as digits as its factorization.

1147575553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367500, while the sum is 43.

The square root of 1147575553 is about 33875.8845345771. The cubic root of 1147575553 is about 1046.9527836382.

The spelling of 1147575553 in words is "one billion, one hundred forty-seven million, five hundred seventy-five thousand, five hundred fifty-three".