1157899 has 2 divisors, whose sum is σ = 1157900. Its totient is φ = 1157898.

The previous prime is 1157873. The next prime is 1157929. The reversal of 1157899 is 9987511.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9987511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1157899 - 2⁷ = 1157771 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1157839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578949 + 578950.

It is an arithmetic number, because the mean of its divisors is an integer number (578950).

2^1157899 is an apocalyptic number.

1157899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157899 is an equidigital number, since it uses as much as digits as its factorization.

1157899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 40.

The square root of 1157899 is about 1076.0571546159. The cubic root of 1157899 is about 105.0082835491.

The spelling of 1157899 in words is "one million, one hundred fifty-seven thousand, eight hundred ninety-nine".