142211149 has 2 divisors, whose sum is σ = 142211150. Its totient is φ = 142211148.

The previous prime is 142211141. The next prime is 142211159. The reversal of 142211149 is 941112241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81090025 + 61121124 = 9005^2 + 7818^2 .

It is a cyclic number.

It is not a de Polignac number, because 142211149 - 2³ = 142211141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142211141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71105574 + 71105575.

It is an arithmetic number, because the mean of its divisors is an integer number (71105575).

Almost surely, 2^142211149 is an apocalyptic number.

It is an amenable number.

142211149 is a deficient number, since it is larger than the sum of its proper divisors (1).

142211149 is an equidigital number, since it uses as much as digits as its factorization.

142211149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The square root of 142211149 is about 11925.2316120065. The cubic root of 142211149 is about 521.9688048670.

The spelling of 142211149 in words is "one hundred forty-two million, two hundred eleven thousand, one hundred forty-nine".