1157863 has 8 divisors (see below), whose sum is σ = 1330560. Its totient is φ = 987000.

The previous prime is 1157851. The next prime is 1157869. The reversal of 1157863 is 3687511.

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

It is not a de Polignac number, because 1157863 - 2⁵ = 1157831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157869) 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, 1428 + ... + 2086.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

2^1157863 is an apocalyptic number.

1157863 is a deficient number, since it is larger than the sum of its proper divisors (172697).

1157863 is an equidigital number, since it uses as much as digits as its factorization.

1157863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its digits is 5040, while the sum is 31.

The square root of 1157863 is about 1076.0404267499. The cubic root of 1157863 is about 105.0071952741.

The spelling of 1157863 in words is "one million, one hundred fifty-seven thousand, eight hundred sixty-three".