126145289 has 2 divisors, whose sum is σ = 126145290. Its totient is φ = 126145288.

The previous prime is 126145277. The next prime is 126145301. The reversal of 126145289 is 982541621.

It is a balanced prime because it is at equal distance from previous prime (126145277) and next prime (126145301).

It can be written as a sum of positive squares in only one way, i.e., 122832889 + 3312400 = 11083^2 + 1820^2 .

It is a cyclic number.

It is not a de Polignac number, because 126145289 - 2¹² = 126141193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (126145589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63072644 + 63072645.

It is an arithmetic number, because the mean of its divisors is an integer number (63072645).

Almost surely, 2^126145289 is an apocalyptic number.

It is an amenable number.

126145289 is a deficient number, since it is larger than the sum of its proper divisors (1).

126145289 is an equidigital number, since it uses as much as digits as its factorization.

126145289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 126145289 is about 11231.4419822212. The cubic root of 126145289 is about 501.5224118198.

The spelling of 126145289 in words is "one hundred twenty-six million, one hundred forty-five thousand, two hundred eighty-nine".