1145097 has 20 divisors (see below), whose sum is σ = 1744336. Its totient is φ = 748440.

The previous prime is 1145093. The next prime is 1145099. The reversal of 1145097 is 7905411.

It is not a de Polignac number, because 1145097 - 2² = 1145093 is a prime.

It is a super-2 number, since 2×1145097² = 2622494278818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145097.

It is not an unprimeable number, because it can be changed into a prime (1145093) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5322 + ... + 5532.

2^1145097 is an apocalyptic number.

It is an amenable number.

1145097 is a deficient number, since it is larger than the sum of its proper divisors (599239).

1145097 is an equidigital number, since it uses as much as digits as its factorization.

1145097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1145097 is about 1070.0920521151. The cubic root of 1145097 is about 104.6198498255.

The spelling of 1145097 in words is "one million, one hundred forty-five thousand, ninety-seven".