1154451648 has 224 divisors, whose sum is σ = 3604930560. Its totient is φ = 319288320.

The previous prime is 1154451631. The next prime is 1154451667. The reversal of 1154451648 is 8461544511.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8812543 + ... + 8812673.

It is an arithmetic number, because the mean of its divisors is an integer number (16093440).

Almost surely, 2^1154451648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1154451648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1802465280).

1154451648 is an abundant number, since it is smaller than the sum of its proper divisors (2450478912).

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

1154451648 is a wasteful number, since it uses less digits than its factorization.

1154451648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 305 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 1154451648 is about 33977.2224880139. Note that the first 3 decimals coincide. The cubic root of 1154451648 is about 1049.0396806997.

The spelling of 1154451648 in words is "one billion, one hundred fifty-four million, four hundred fifty-one thousand, six hundred forty-eight".