145231326565 has 16 divisors (see below), whose sum is σ = 187735161600. Its totient is φ = 107218262592.

The previous prime is 145231326529. The next prime is 145231326599. The reversal of 145231326565 is 565623132541.

It is a cyclic number.

It is not a de Polignac number, because 145231326565 - 2¹³ = 145231318373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67485 + ... + 543154.

It is an arithmetic number, because the mean of its divisors is an integer number (11733447600).

Almost surely, 2^145231326565 is an apocalyptic number.

It is an amenable number.

145231326565 is a deficient number, since it is larger than the sum of its proper divisors (42503835035).

145231326565 is a wasteful number, since it uses less digits than its factorization.

145231326565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614316.

The product of its digits is 648000, while the sum is 43.

The spelling of 145231326565 in words is "one hundred forty-five billion, two hundred thirty-one million, three hundred twenty-six thousand, five hundred sixty-five".