1057231 has 8 divisors (see below), whose sum is σ = 1222560. Its totient is φ = 895488.

The previous prime is 1057223. The next prime is 1057237. The reversal of 1057231 is 1327501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057231 - 2³ = 1057223 is a prime.

It is a super-2 number, since 2×1057231² = 2235474774722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1057199 and 1057208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (152820).

2^1057231 is an apocalyptic number.

1057231 is a deficient number, since it is larger than the sum of its proper divisors (165329).

1057231 is an equidigital number, since it uses as much as digits as its factorization.

1057231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1057231 is about 1028.2173894659. The cubic root of 1057231 is about 101.8724215539.

The spelling of 1057231 in words is "one million, fifty-seven thousand, two hundred thirty-one".