145122352000309 has 4 divisors (see below), whose sum is σ = 145122512584140. Its totient is φ = 145122191416480.

The previous prime is 145122352000271. The next prime is 145122352000313. The reversal of 145122352000309 is 903000253221541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12655557226225 + 132466794774084 = 3557465^2 + 11509422^2 .

It is a cyclic number.

It is not a de Polignac number, because 145122352000309 - 2¹⁷ = 145122351869237 is a prime.

It is a super-2 number, since 2×145122352000309² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145122352000609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78928624 + ... + 80746345.

It is an arithmetic number, because the mean of its divisors is an integer number (36280628146035).

Almost surely, 2^{145122352000309} is an apocalyptic number.

It is an amenable number.

145122352000309 is a deficient number, since it is larger than the sum of its proper divisors (160583831).

145122352000309 is an equidigital number, since it uses as much as digits as its factorization.

145122352000309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160583830.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 145122352000309 in words is "one hundred forty-five trillion, one hundred twenty-two billion, three hundred fifty-two million, three hundred nine", and thus it is an aban number.