1101645229 has 4 divisors (see below), whose sum is σ = 1101788380. Its totient is φ = 1101502080.

The previous prime is 1101645221. The next prime is 1101645241. The reversal of 1101645229 is 9225461011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9225461011 = 13 ⋅709650847.

It can be written as a sum of positive squares in 2 ways, for example, as 777573225 + 324072004 = 27885^2 + 18002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101645229 - 2³ = 1101645221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101645229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101645221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59334 + ... + 75655.

It is an arithmetic number, because the mean of its divisors is an integer number (275447095).

Almost surely, 2^1101645229 is an apocalyptic number.

It is an amenable number.

1101645229 is a deficient number, since it is larger than the sum of its proper divisors (143151).

1101645229 is an equidigital number, since it uses as much as digits as its factorization.

1101645229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143150.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1101645229 is about 33191.0413967384. The cubic root of 1101645229 is about 1032.7945067205.

The spelling of 1101645229 in words is "one billion, one hundred one million, six hundred forty-five thousand, two hundred twenty-nine".