1109900149 has 2 divisors, whose sum is σ = 1109900150. Its totient is φ = 1109900148.

The previous prime is 1109900123. The next prime is 1109900171. The reversal of 1109900149 is 9410099011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032336900 + 77563249 = 32130^2 + 8807^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109900149 - 2¹⁷ = 1109769077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109900179) 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 as a sum of consecutive naturals, namely, 554950074 + 554950075.

It is an arithmetic number, because the mean of its divisors is an integer number (554950075).

Almost surely, 2^1109900149 is an apocalyptic number.

It is an amenable number.

1109900149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109900149 is an equidigital number, since it uses as much as digits as its factorization.

1109900149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 1109900149 is about 33315.1639497692. The cubic root of 1109900149 is about 1035.3677577888.

The spelling of 1109900149 in words is "one billion, one hundred nine million, nine hundred thousand, one hundred forty-nine".