1102255645 has 16 divisors (see below), whose sum is σ = 1393165440. Its totient is φ = 834888384.

The previous prime is 1102255643. The next prime is 1102255667. The reversal of 1102255645 is 5465522011.

It is a cyclic number.

It is not a de Polignac number, because 1102255645 - 2¹ = 1102255643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102255643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250807 + ... + 255163.

It is an arithmetic number, because the mean of its divisors is an integer number (87072840).

Almost surely, 2^1102255645 is an apocalyptic number.

It is an amenable number.

1102255645 is a deficient number, since it is larger than the sum of its proper divisors (290909795).

1102255645 is a wasteful number, since it uses less digits than its factorization.

1102255645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1102255645 is about 33200.2356166338. The cubic root of 1102255645 is about 1032.9852268879.

Adding to 1102255645 its reverse (5465522011), we get a palindrome (6567777656).

The spelling of 1102255645 in words is "one billion, one hundred two million, two hundred fifty-five thousand, six hundred forty-five".