1148843521 has 8 divisors (see below), whose sum is σ = 1319630400. Its totient is φ = 979723248.

The previous prime is 1148843483. The next prime is 1148843533. The reversal of 1148843521 is 1253488411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1148843521 - 2⁹ = 1148843009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148843551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415171 + ... + 417928.

It is an arithmetic number, because the mean of its divisors is an integer number (164953800).

Almost surely, 2^1148843521 is an apocalyptic number.

It is an amenable number.

1148843521 is a deficient number, since it is larger than the sum of its proper divisors (170786879).

1148843521 is an equidigital number, since it uses as much as digits as its factorization.

1148843521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833303.

The product of its digits is 30720, while the sum is 37.

The square root of 1148843521 is about 33894.5942740137. The cubic root of 1148843521 is about 1047.3382379988.

The spelling of 1148843521 in words is "one billion, one hundred forty-eight million, eight hundred forty-three thousand, five hundred twenty-one".