1053581 has 2 divisors, whose sum is σ = 1053582. Its totient is φ = 1053580.

The previous prime is 1053571. The next prime is 1053583. The reversal of 1053581 is 1853501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 168100 = 941^2 + 410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053581 is a prime.

It is a super-2 number, since 2×1053581² = 2220065847122, which contains 22 as substring.

Together with 1053583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1053583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526790 + 526791.

It is an arithmetic number, because the mean of its divisors is an integer number (526791).

2^1053581 is an apocalyptic number.

It is an amenable number.

1053581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053581 is an equidigital number, since it uses as much as digits as its factorization.

1053581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1053581 is about 1026.4409383886. The cubic root of 1053581 is about 101.7550510928.

The spelling of 1053581 in words is "one million, fifty-three thousand, five hundred eighty-one".