145763632309 has 2 divisors, whose sum is σ = 145763632310. Its totient is φ = 145763632308.

The previous prime is 145763632307. The next prime is 145763632331. The reversal of 145763632309 is 903236367541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142831084900 + 2932547409 = 377930^2 + 54153^2 .

It is an emirp because it is prime and its reverse (903236367541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145763632309 - 2¹ = 145763632307 is a prime.

Together with 145763632307, 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 (145763632307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72881816154 + 72881816155.

It is an arithmetic number, because the mean of its divisors is an integer number (72881816155).

Almost surely, 2^145763632309 is an apocalyptic number.

It is an amenable number.

145763632309 is a deficient number, since it is larger than the sum of its proper divisors (1).

145763632309 is an equidigital number, since it uses as much as digits as its factorization.

145763632309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 49.

The spelling of 145763632309 in words is "one hundred forty-five billion, seven hundred sixty-three million, six hundred thirty-two thousand, three hundred nine".