901252249 has 2 divisors, whose sum is σ = 901252250. Its totient is φ = 901252248.

The previous prime is 901252241. The next prime is 901252267. The reversal of 901252249 is 942252109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 674960400 + 226291849 = 25980^2 + 15043^2 .

It is a cyclic number.

It is not a de Polignac number, because 901252249 - 2³ = 901252241 is a prime.

It is not a weakly prime, because it can be changed into another prime (901252241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450626124 + 450626125.

It is an arithmetic number, because the mean of its divisors is an integer number (450626125).

Almost surely, 2^901252249 is an apocalyptic number.

It is an amenable number.

901252249 is a deficient number, since it is larger than the sum of its proper divisors (1).

901252249 is an equidigital number, since it uses as much as digits as its factorization.

901252249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 901252249 is about 30020.8635618631. The cubic root of 901252249 is about 965.9369671259.

The spelling of 901252249 in words is "nine hundred one million, two hundred fifty-two thousand, two hundred forty-nine".