1148630453 has 4 divisors (see below), whose sum is σ = 1151189100. Its totient is φ = 1146071808.

The previous prime is 1148630411. The next prime is 1148630459. The reversal of 1148630453 is 3540368411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 363397969 + 785232484 = 19063^2 + 28022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148630453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148630459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278650 + ... + 1279547.

It is an arithmetic number, because the mean of its divisors is an integer number (287797275).

Almost surely, 2^1148630453 is an apocalyptic number.

It is an amenable number.

1148630453 is a deficient number, since it is larger than the sum of its proper divisors (2558647).

1148630453 is an equidigital number, since it uses as much as digits as its factorization.

1148630453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558646.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1148630453 is about 33891.4510311966. The cubic root of 1148630453 is about 1047.2734864881.

Adding to 1148630453 its reverse (3540368411), we get a palindrome (4688998864).

The spelling of 1148630453 in words is "one billion, one hundred forty-eight million, six hundred thirty thousand, four hundred fifty-three".