1048513921 has 16 divisors (see below), whose sum is σ = 1293773824. Its totient is φ = 827475264.

The previous prime is 1048513909. The next prime is 1048513927. The reversal of 1048513921 is 1293158401.

It is not a de Polignac number, because 1048513921 - 2²¹ = 1046416769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1048513927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21616 + ... + 50638.

It is an arithmetic number, because the mean of its divisors is an integer number (80860864).

Almost surely, 2^1048513921 is an apocalyptic number.

It is an amenable number.

1048513921 is a deficient number, since it is larger than the sum of its proper divisors (245259903).

1048513921 is a wasteful number, since it uses less digits than its factorization.

1048513921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29440.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1048513921 is about 32380.7646759616. The cubic root of 1048513921 is about 1015.9166239809.

The spelling of 1048513921 in words is "one billion, forty-eight million, five hundred thirteen thousand, nine hundred twenty-one".