1102551 has 24 divisors (see below), whose sum is σ = 1672320. Its totient is φ = 643104.

The previous prime is 1102547. The next prime is 1102553. The reversal of 1102551 is 1552011.

It is not a de Polignac number, because 1102551 - 2² = 1102547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1102551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102553) 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 23 ways as a sum of consecutive naturals, for example, 38005 + ... + 38033.

It is an arithmetic number, because the mean of its divisors is an integer number (69680).

2^1102551 is an apocalyptic number.

1102551 is a deficient number, since it is larger than the sum of its proper divisors (569769).

1102551 is a wasteful number, since it uses less digits than its factorization.

1102551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1102551 is about 1050.0242854334. The cubic root of 1102551 is about 103.3077483195.

Adding to 1102551 its reverse (1552011), we get a palindrome (2654562).

It can be divided in two parts, 1102 and 551, that added together give a triangular number (1653 = T₅₇).

The spelling of 1102551 in words is "one million, one hundred two thousand, five hundred fifty-one".