1102145 has 16 divisors (see below), whose sum is σ = 1494720. Its totient is φ = 772800.

The previous prime is 1102117. The next prime is 1102147. The reversal of 1102145 is 5412011.

It is not a de Polignac number, because 1102145 - 2²⁰ = 53569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1102147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1250 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (93420).

2^1102145 is an apocalyptic number.

It is an amenable number.

1102145 is a deficient number, since it is larger than the sum of its proper divisors (392575).

1102145 is a wasteful number, since it uses less digits than its factorization.

1102145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1102145 is about 1049.8309387706. The cubic root of 1102145 is about 103.2950661865.

Adding to 1102145 its reverse (5412011), we get a palindrome (6514156).

The spelling of 1102145 in words is "one million, one hundred two thousand, one hundred forty-five".