202112149 has 2 divisors, whose sum is σ = 202112150. Its totient is φ = 202112148.

The previous prime is 202112117. The next prime is 202112153. The reversal of 202112149 is 941211202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183467025 + 18645124 = 13545^2 + 4318^2 .

It is a cyclic number.

It is not a de Polignac number, because 202112149 - 2⁵ = 202112117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202112159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101056074 + 101056075.

It is an arithmetic number, because the mean of its divisors is an integer number (101056075).

Almost surely, 2^202112149 is an apocalyptic number.

It is an amenable number.

202112149 is a deficient number, since it is larger than the sum of its proper divisors (1).

202112149 is an equidigital number, since it uses as much as digits as its factorization.

202112149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 202112149 is about 14216.6152441430. The cubic root of 202112149 is about 586.8549966057.

The spelling of 202112149 in words is "two hundred two million, one hundred twelve thousand, one hundred forty-nine".