1054107221 has 4 divisors (see below), whose sum is σ = 1066807392. Its totient is φ = 1041407052.

The previous prime is 1054107169. The next prime is 1054107233. The reversal of 1054107221 is 1227014501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1054107221 is a prime.

It is a super-2 number, since 2×1054107221² = 2222284066728685682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054107421) 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 3 ways as a sum of consecutive naturals, for example, 6349961 + ... + 6350126.

It is an arithmetic number, because the mean of its divisors is an integer number (266701848).

Almost surely, 2^1054107221 is an apocalyptic number.

It is an amenable number.

1054107221 is a deficient number, since it is larger than the sum of its proper divisors (12700171).

1054107221 is an equidigital number, since it uses as much as digits as its factorization.

1054107221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12700170.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1054107221 is about 32467.0174330812. The cubic root of 1054107221 is about 1017.7198911416.

The spelling of 1054107221 in words is "one billion, fifty-four million, one hundred seven thousand, two hundred twenty-one".