1141857 has 24 divisors (see below), whose sum is σ = 1770496. Its totient is φ = 734832.

The previous prime is 1141853. The next prime is 1141867. The reversal of 1141857 is 7581411.

It is not a de Polignac number, because 1141857 - 2² = 1141853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 1141857.

It is not an unprimeable number, because it can be changed into a prime (1141853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8928 + ... + 9054.

2^1141857 is an apocalyptic number.

It is an amenable number.

1141857 is a deficient number, since it is larger than the sum of its proper divisors (628639).

1141857 is an equidigital number, since it uses as much as digits as its factorization.

1141857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 167 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 1141857 is about 1068.5770912761. The cubic root of 1141857 is about 104.5210842434.

The spelling of 1141857 in words is "one million, one hundred forty-one thousand, eight hundred fifty-seven".