1148424921 has 12 divisors (see below), whose sum is σ = 1895812672. Its totient is φ = 656242776.

The previous prime is 1148424889. The next prime is 1148424943. The reversal of 1148424921 is 1294248411.

1148424921 is a `hidden beast` number, since 1 + 148 + 424 + 92 + 1 = 666.

It is not a de Polignac number, because 1148424921 - 2⁵ = 1148424889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1148423921) 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, 9114421 + ... + 9114546.

Almost surely, 2^1148424921 is an apocalyptic number.

It is an amenable number.

1148424921 is a deficient number, since it is larger than the sum of its proper divisors (747387751).

1148424921 is a wasteful number, since it uses less digits than its factorization.

1148424921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18228980 (or 18228977 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1148424921 is about 33888.4186854447. The cubic root of 1148424921 is about 1047.2110175848.

The spelling of 1148424921 in words is "one billion, one hundred forty-eight million, four hundred twenty-four thousand, nine hundred twenty-one".