1148521040 has 20 divisors (see below), whose sum is σ = 2670311604. Its totient is φ = 459408384.

The previous prime is 1148521027. The next prime is 1148521043. The reversal of 1148521040 is 401258411.

It can be written as a sum of positive squares in 2 ways, for example, as 897361936 + 251159104 = 29956^2 + 15848^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148521043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7178177 + ... + 7178336.

Almost surely, 2^1148521040 is an apocalyptic number.

1148521040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148521040 is an abundant number, since it is smaller than the sum of its proper divisors (1521790564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1148521040 is a wasteful number, since it uses less digits than its factorization.

1148521040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14356526 (or 14356520 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1148521040 is about 33889.8368246293. The cubic root of 1148521040 is about 1047.2402326909.

Adding to 1148521040 its reverse (401258411), we get a palindrome (1549779451).

The spelling of 1148521040 in words is "one billion, one hundred forty-eight million, five hundred twenty-one thousand, forty".