1151993 has 2 divisors, whose sum is σ = 1151994. Its totient is φ = 1151992.

The previous prime is 1151987. The next prime is 1151999. The reversal of 1151993 is 3991511.

It is a balanced prime because it is at equal distance from previous prime (1151987) and next prime (1151999).

It can be written as a sum of positive squares in only one way, i.e., 1149184 + 2809 = 1072^2 + 53^2 .

It is an emirp because it is prime and its reverse (3991511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1151993 - 2⁸ = 1151737 is a prime.

It is equal to p₈₉₄₅₃ and since 1151993 and 89453 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1151999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575996 + 575997.

It is an arithmetic number, because the mean of its divisors is an integer number (575997).

2^1151993 is an apocalyptic number.

It is an amenable number.

1151993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151993 is an equidigital number, since it uses as much as digits as its factorization.

1151993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1215, while the sum is 29.

The square root of 1151993 is about 1073.3093682625. The cubic root of 1151993 is about 104.8294434393.

The spelling of 1151993 in words is "one million, one hundred fifty-one thousand, nine hundred ninety-three".