1151797 has 4 divisors (see below), whose sum is σ = 1169056. Its totient is φ = 1134540.

The previous prime is 1151779. The next prime is 1151807. The reversal of 1151797 is 7971511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7971511 = 139 ⋅57349.

It is a cyclic number.

It is not a de Polignac number, because 1151797 - 2¹¹ = 1149749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8529 + ... + 8662.

It is an arithmetic number, because the mean of its divisors is an integer number (292264).

2^1151797 is an apocalyptic number.

It is an amenable number.

1151797 is a deficient number, since it is larger than the sum of its proper divisors (17259).

1151797 is an equidigital number, since it uses as much as digits as its factorization.

1151797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17258.

The product of its digits is 2205, while the sum is 31.

The square root of 1151797 is about 1073.2180579919. The cubic root of 1151797 is about 104.8234978777.

The spelling of 1151797 in words is "one million, one hundred fifty-one thousand, seven hundred ninety-seven".