901251289 has 2 divisors, whose sum is σ = 901251290. Its totient is φ = 901251288.

The previous prime is 901251257. The next prime is 901251331. The reversal of 901251289 is 982152109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 767733264 + 133518025 = 27708^2 + 11555^2 .

It is an emirp because it is prime and its reverse (982152109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 901251289 - 2⁵ = 901251257 is a prime.

It is not a weakly prime, because it can be changed into another prime (901251089) 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, 450625644 + 450625645.

It is an arithmetic number, because the mean of its divisors is an integer number (450625645).

Almost surely, 2^901251289 is an apocalyptic number.

It is an amenable number.

901251289 is a deficient number, since it is larger than the sum of its proper divisors (1).

901251289 is an equidigital number, since it uses as much as digits as its factorization.

901251289 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 37.

The square root of 901251289 is about 30020.8475729783. The cubic root of 901251289 is about 965.9366241587.

The spelling of 901251289 in words is "nine hundred one million, two hundred fifty-one thousand, two hundred eighty-nine".