1048975221 has 16 divisors (see below), whose sum is σ = 1599194624. Its totient is φ = 599130864.

The previous prime is 1048975177. The next prime is 1048975231. The reversal of 1048975221 is 1225798401.

It is not a de Polignac number, because 1048975221 - 2¹⁰ = 1048974197 is a prime.

It is a super-2 number, since 2×1048975221² = 2200698028543997682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1048975221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048975231) 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, 38646 + ... + 59928.

It is an arithmetic number, because the mean of its divisors is an integer number (99949664).

Almost surely, 2^1048975221 is an apocalyptic number.

It is an amenable number.

1048975221 is a deficient number, since it is larger than the sum of its proper divisors (550219403).

1048975221 is a wasteful number, since it uses less digits than its factorization.

1048975221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23640.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1048975221 is about 32387.8869486726. The cubic root of 1048975221 is about 1016.0655883449.

The spelling of 1048975221 in words is "one billion, forty-eight million, nine hundred seventy-five thousand, two hundred twenty-one".