1201010149 has 2 divisors, whose sum is σ = 1201010150. Its totient is φ = 1201010148.

The previous prime is 1201010137. The next prime is 1201010201. The reversal of 1201010149 is 9410101021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 984390625 + 216619524 = 31375^2 + 14718^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201010149 - 2⁵ = 1201010117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201010449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600505074 + 600505075.

It is an arithmetic number, because the mean of its divisors is an integer number (600505075).

Almost surely, 2^1201010149 is an apocalyptic number.

It is an amenable number.

1201010149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201010149 is an equidigital number, since it uses as much as digits as its factorization.

1201010149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1201010149 is about 34655.5933292160. The cubic root of 1201010149 is about 1062.9566643012.

The spelling of 1201010149 in words is "one billion, two hundred one million, ten thousand, one hundred forty-nine".