1146897 has 18 divisors (see below), whose sum is σ = 1753362. Its totient is φ = 722304.

The previous prime is 1146881. The next prime is 1146911. The reversal of 1146897 is 7986411.

It can be written as a sum of positive squares in only one way, i.e., 938961 + 207936 = 969^2 + 456^2 .

It is not a de Polignac number, because 1146897 - 2⁴ = 1146881 is a prime.

1146897 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3073 + ... + 3425.

It is an arithmetic number, because the mean of its divisors is an integer number (97409).

2^1146897 is an apocalyptic number.

It is an amenable number.

1146897 is a deficient number, since it is larger than the sum of its proper divisors (606465).

1146897 is a wasteful number, since it uses less digits than its factorization.

1146897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 375 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 1146897 is about 1070.9327709992. The cubic root of 1146897 is about 104.6746391122.

The spelling of 1146897 in words is "one million, one hundred forty-six thousand, eight hundred ninety-seven".