1145669 has 12 divisors (see below), whose sum is σ = 1351584. Its totient is φ = 968184.

The previous prime is 1145659. The next prime is 1145689. The reversal of 1145669 is 9665411.

It is not a de Polignac number, because 1145669 - 2¹² = 1141573 is a prime.

It is a super-2 number, since 2×1145669² = 2625114915122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4934 + ... + 5160.

It is an arithmetic number, because the mean of its divisors is an integer number (112632).

2^1145669 is an apocalyptic number.

It is an amenable number.

1145669 is a deficient number, since it is larger than the sum of its proper divisors (205915).

1145669 is a wasteful number, since it uses less digits than its factorization.

1145669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 337 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 1145669 is about 1070.3592854738. The cubic root of 1145669 is about 104.6372668631.

The spelling of 1145669 in words is "one million, one hundred forty-five thousand, six hundred sixty-nine".