1102247172 has 36 divisors (see below), whose sum is σ = 3000563020. Its totient is φ = 339152832.

The previous prime is 1102247143. The next prime is 1102247177. The reversal of 1102247172 is 2717422011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 540841536 + 561405636 = 23256^2 + 23694^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1102247177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1177147 + ... + 1178082.

Almost surely, 2^1102247172 is an apocalyptic number.

1102247172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1102247172 is an abundant number, since it is smaller than the sum of its proper divisors (1898315848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1102247172 is a wasteful number, since it uses less digits than its factorization.

1102247172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355252 (or 2355247 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1102247172 is about 33200.1080118725. The cubic root of 1102247172 is about 1032.9825800408.

Adding to 1102247172 its reverse (2717422011), we get a palindrome (3819669183).

The spelling of 1102247172 in words is "one billion, one hundred two million, two hundred forty-seven thousand, one hundred seventy-two".