11145897 has 32 divisors (see below), whose sum is σ = 19987200. Its totient is φ = 5992704.

The previous prime is 11145839. The next prime is 11145899. The reversal of 11145897 is 79854111.

11145897 is a `hidden beast` number, since 111 + 458 + 97 = 666.

It is not a de Polignac number, because 11145897 - 2¹⁵ = 11113129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1479 + ... + 4947.

It is an arithmetic number, because the mean of its divisors is an integer number (624600).

Almost surely, 2^11145897 is an apocalyptic number.

11145897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11145897 is a deficient number, since it is larger than the sum of its proper divisors (8841303).

11145897 is a wasteful number, since it uses less digits than its factorization.

11145897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502 (or 3496 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 11145897 is about 3338.5471391011. The cubic root of 11145897 is about 223.3769423022.

The spelling of 11145897 in words is "eleven million, one hundred forty-five thousand, eight hundred ninety-seven".