1148680557 has 12 divisors (see below), whose sum is σ = 1659660444. Its totient is φ = 765576960.

The previous prime is 1148680537. The next prime is 1148680573. The reversal of 1148680557 is 7550868411.

1148680557 is a `hidden beast` number, since 1 + 14 + 8 + 6 + 80 + 557 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1007046756 + 141633801 = 31734^2 + 11901^2 .

It is not a de Polignac number, because 1148680557 - 2⁸ = 1148680301 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148680537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21757 + ... + 52637.

It is an arithmetic number, because the mean of its divisors is an integer number (138305037).

Almost surely, 2^1148680557 is an apocalyptic number.

It is an amenable number.

1148680557 is a deficient number, since it is larger than the sum of its proper divisors (510979887).

1148680557 is a wasteful number, since it uses less digits than its factorization.

1148680557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35020 (or 35017 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The square root of 1148680557 is about 33892.1902065948. The cubic root of 1148680557 is about 1047.2887138480.

The spelling of 1148680557 in words is "one billion, one hundred forty-eight million, six hundred eighty thousand, five hundred fifty-seven".