145667317093 has 4 divisors (see below), whose sum is σ = 148766621760. Its totient is φ = 142568012428.

The previous prime is 145667317079. The next prime is 145667317097. The reversal of 145667317093 is 390713766541.

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 not a de Polignac number, because 145667317093 - 2⁹ = 145667316581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145667317093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145667317097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549652263 + ... + 1549652356.

It is an arithmetic number, because the mean of its divisors is an integer number (37191655440).

Almost surely, 2^145667317093 is an apocalyptic number.

It is an amenable number.

145667317093 is a deficient number, since it is larger than the sum of its proper divisors (3099304667).

145667317093 is an equidigital number, since it uses as much as digits as its factorization.

145667317093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099304666.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 145667317093 in words is "one hundred forty-five billion, six hundred sixty-seven million, three hundred seventeen thousand, ninety-three".