1522532989 has 2 divisors, whose sum is σ = 1522532990. Its totient is φ = 1522532988.

The previous prime is 1522532987. The next prime is 1522533053. The reversal of 1522532989 is 9892352251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1377523225 + 145009764 = 37115^2 + 12042^2 .

It is a cyclic number.

It is not a de Polignac number, because 1522532989 - 2¹ = 1522532987 is a prime.

Together with 1522532987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1522532983) 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, 761266494 + 761266495.

It is an arithmetic number, because the mean of its divisors is an integer number (761266495).

Almost surely, 2^1522532989 is an apocalyptic number.

It is an amenable number.

1522532989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1522532989 is an equidigital number, since it uses as much as digits as its factorization.

1522532989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 46.

The square root of 1522532989 is about 39019.6487554668. The cubic root of 1522532989 is about 1150.4177408636.

The spelling of 1522532989 in words is "one billion, five hundred twenty-two million, five hundred thirty-two thousand, nine hundred eighty-nine".