901522049 has 2 divisors, whose sum is σ = 901522050. Its totient is φ = 901522048.

The previous prime is 901521979. The next prime is 901522091. The reversal of 901522049 is 940225109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 898081024 + 3441025 = 29968^2 + 1855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-901522049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (901522949) 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, 450761024 + 450761025.

It is an arithmetic number, because the mean of its divisors is an integer number (450761025).

Almost surely, 2^901522049 is an apocalyptic number.

It is an amenable number.

901522049 is a deficient number, since it is larger than the sum of its proper divisors (1).

901522049 is an equidigital number, since it uses as much as digits as its factorization.

901522049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 901522049 is about 30025.3567672393. The cubic root of 901522049 is about 966.0333455419.

The spelling of 901522049 in words is "nine hundred one million, five hundred twenty-two thousand, forty-nine".