145355144423 has 8 divisors (see below), whose sum is σ = 147212892480. Its totient is φ = 143497841760.

The previous prime is 145355144419. The next prime is 145355144443. The reversal of 145355144423 is 324441553541.

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

It is a cyclic number.

It is not a de Polignac number, because 145355144423 - 2² = 145355144419 is a prime.

It is a super-2 number, since 2×145355144423² (a number of 23 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 (145355144443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572153 + ... + 786173.

It is an arithmetic number, because the mean of its divisors is an integer number (18401611560).

Almost surely, 2^145355144423 is an apocalyptic number.

145355144423 is a deficient number, since it is larger than the sum of its proper divisors (1857748057).

145355144423 is an equidigital number, since it uses as much as digits as its factorization.

145355144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222697.

The product of its digits is 576000, while the sum is 41.

Adding to 145355144423 its reverse (324441553541), we get a palindrome (469796697964).

The spelling of 145355144423 in words is "one hundred forty-five billion, three hundred fifty-five million, one hundred forty-four thousand, four hundred twenty-three".