901385441309 has 2 divisors, whose sum is σ = 901385441310. Its totient is φ = 901385441308.

The previous prime is 901385441287. The next prime is 901385441311. The reversal of 901385441309 is 903144583109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 893786832409 + 7598608900 = 945403^2 + 87170^2 .

It is a cyclic number.

It is not a de Polignac number, because 901385441309 - 2¹² = 901385437213 is a prime.

Together with 901385441311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901385441329) 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, 450692720654 + 450692720655.

It is an arithmetic number, because the mean of its divisors is an integer number (450692720655).

Almost surely, 2^901385441309 is an apocalyptic number.

It is an amenable number.

901385441309 is a deficient number, since it is larger than the sum of its proper divisors (1).

901385441309 is an equidigital number, since it uses as much as digits as its factorization.

901385441309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 901385441309 in words is "nine hundred one billion, three hundred eighty-five million, four hundred forty-one thousand, three hundred nine".