145681222247 has 8 divisors (see below), whose sum is σ = 163220239632. Its totient is φ = 128858083200.

The previous prime is 145681222223. The next prime is 145681222259. The reversal of 145681222247 is 742222186541.

145681222247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145681222247 - 2²⁸ = 145412786791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145681222198 and 145681222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145681222217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178969154 + ... + 178969967.

It is an arithmetic number, because the mean of its divisors is an integer number (20402529954).

Almost surely, 2^145681222247 is an apocalyptic number.

145681222247 is a deficient number, since it is larger than the sum of its proper divisors (17539017385).

145681222247 is a wasteful number, since it uses less digits than its factorization.

145681222247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357939169.

The product of its digits is 430080, while the sum is 44.

The spelling of 145681222247 in words is "one hundred forty-five billion, six hundred eighty-one million, two hundred twenty-two thousand, two hundred forty-seven".