145623735268717 has 4 divisors (see below), whose sum is σ = 147467073689920. Its totient is φ = 143780396847516.

The previous prime is 145623735268651. The next prime is 145623735268769. The reversal of 145623735268717 is 717862537326541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145623735268717 is a prime.

It is a super-3 number, since 3×145623735268717³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145623735269717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921669210483 + ... + 921669210640.

It is an arithmetic number, because the mean of its divisors is an integer number (36866768422480).

Almost surely, 2^{145623735268717} is an apocalyptic number.

It is an amenable number.

145623735268717 is a deficient number, since it is larger than the sum of its proper divisors (1843338421203).

145623735268717 is an equidigital number, since it uses as much as digits as its factorization.

145623735268717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843338421202.

The product of its digits is 355622400, while the sum is 67.

The spelling of 145623735268717 in words is "one hundred forty-five trillion, six hundred twenty-three billion, seven hundred thirty-five million, two hundred sixty-eight thousand, seven hundred seventeen".