1109900141 has 4 divisors (see below), whose sum is σ = 1268457312. Its totient is φ = 951342972.

The previous prime is 1109900123. The next prime is 1109900149. The reversal of 1109900141 is 1410099011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1410099011 = 197 ⋅7157863.

It is a cyclic number.

It is not a de Polignac number, because 1109900141 - 2¹⁴ = 1109883757 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 1109900141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109900149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79278575 + ... + 79278588.

It is an arithmetic number, because the mean of its divisors is an integer number (317114328).

Almost surely, 2^1109900141 is an apocalyptic number.

It is an amenable number.

1109900141 is a deficient number, since it is larger than the sum of its proper divisors (158557171).

1109900141 is an equidigital number, since it uses as much as digits as its factorization.

1109900141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158557170.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 1109900141 is about 33315.1638297037. The cubic root of 1109900141 is about 1035.3677553013.

Adding to 1109900141 its reverse (1410099011), we get a palindrome (2519999152).

The spelling of 1109900141 in words is "one billion, one hundred nine million, nine hundred thousand, one hundred forty-one".