1105142149 has 2 divisors, whose sum is σ = 1105142150. Its totient is φ = 1105142148.

The previous prime is 1105142141. The next prime is 1105142197. The reversal of 1105142149 is 9412415011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1087350625 + 17791524 = 32975^2 + 4218^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105142149 - 2³ = 1105142141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105142141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552571074 + 552571075.

It is an arithmetic number, because the mean of its divisors is an integer number (552571075).

Almost surely, 2^1105142149 is an apocalyptic number.

It is an amenable number.

1105142149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105142149 is an equidigital number, since it uses as much as digits as its factorization.

1105142149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1105142149 is about 33243.6783313760. The cubic root of 1105142149 is about 1033.8861422120.

The spelling of 1105142149 in words is "one billion, one hundred five million, one hundred forty-two thousand, one hundred forty-nine".