1148530477 has 2 divisors, whose sum is σ = 1148530478. Its totient is φ = 1148530476.

The previous prime is 1148530463. The next prime is 1148530541. The reversal of 1148530477 is 7740358411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066283716 + 82246761 = 32654^2 + 9069^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148530477 - 2⁷ = 1148530349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148530447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574265238 + 574265239.

It is an arithmetic number, because the mean of its divisors is an integer number (574265239).

Almost surely, 2^1148530477 is an apocalyptic number.

It is an amenable number.

1148530477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148530477 is an equidigital number, since it uses as much as digits as its factorization.

1148530477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1148530477 is about 33889.9760548750. The cubic root of 1148530477 is about 1047.2431009533.

Adding to 1148530477 its reverse (7740358411), we get a palindrome (8888888888).

The spelling of 1148530477 in words is "one billion, one hundred forty-eight million, five hundred thirty thousand, four hundred seventy-seven".