1054721 has 2 divisors, whose sum is σ = 1054722. Its totient is φ = 1054720.

The previous prime is 1054717. The next prime is 1054723. The reversal of 1054721 is 1274501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050625 + 4096 = 1025^2 + 64^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054721 - 2² = 1054717 is a prime.

It is a super-2 number, since 2×1054721² = 2224872775682, which contains 22 as substring.

Together with 1054723, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1054693 and 1054702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1054723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527360 + 527361.

It is an arithmetic number, because the mean of its divisors is an integer number (527361).

It is a Proth number, since it is equal to 515 ⋅ 2¹¹ + 1 and 515 < 2¹¹.

2^1054721 is an apocalyptic number.

It is an amenable number.

1054721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054721 is an equidigital number, since it uses as much as digits as its factorization.

1054721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1054721 is about 1026.9961051533. The cubic root of 1054721 is about 101.7917383352.

The spelling of 1054721 in words is "one million, fifty-four thousand, seven hundred twenty-one".