1254591016 has 64 divisors (see below), whose sum is σ = 2755226880. Its totient is φ = 524482560.

The previous prime is 1254591001. The next prime is 1254591043. The reversal of 1254591016 is 6101954521.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384046 + ... + 387298.

It is an arithmetic number, because the mean of its divisors is an integer number (43050420).

Almost surely, 2^1254591016 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 1254591016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377613440).

1254591016 is an abundant number, since it is smaller than the sum of its proper divisors (1500635864).

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

1254591016 is a wasteful number, since it uses less digits than its factorization.

1254591016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1254591016 is about 35420.2063235097. The cubic root of 1254591016 is about 1078.5345396110.

The spelling of 1254591016 in words is "one billion, two hundred fifty-four million, five hundred ninety-one thousand, sixteen".