1148802721 has 8 divisors (see below), whose sum is σ = 1255928544. Its totient is φ = 1042125120.

The previous prime is 1148802713. The next prime is 1148802773. The reversal of 1148802721 is 1272088411.

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

It is a cyclic number.

It is not a de Polignac number, because 1148802721 - 2³ = 1148802713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148892721) 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, 106680 + ... + 116953.

It is an arithmetic number, because the mean of its divisors is an integer number (156991068).

Almost surely, 2^1148802721 is an apocalyptic number.

1148802721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1148802721 is a deficient number, since it is larger than the sum of its proper divisors (107125823).

1148802721 is a wasteful number, since it uses less digits than its factorization.

1148802721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224111.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 1148802721 is about 33893.9924027843. The cubic root of 1148802721 is about 1047.3258394707.

The spelling of 1148802721 in words is "one billion, one hundred forty-eight million, eight hundred two thousand, seven hundred twenty-one".