145214507223 has 12 divisors (see below), whose sum is σ = 209807482248. Its totient is φ = 96785120400.

The previous prime is 145214507173. The next prime is 145214507279. The reversal of 145214507223 is 322705412541.

145214507223 is a `hidden beast` number, since 1 + 4 + 521 + 45 + 0 + 72 + 23 = 666.

It is not a de Polignac number, because 145214507223 - 2³⁶ = 76495030487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145214507293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2008428 + ... + 2079473.

It is an arithmetic number, because the mean of its divisors is an integer number (17483956854).

Almost surely, 2^145214507223 is an apocalyptic number.

145214507223 is a deficient number, since it is larger than the sum of its proper divisors (64592975025).

145214507223 is a wasteful number, since it uses less digits than its factorization.

145214507223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091854 (or 4091851 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 145214507223 its reverse (322705412541), we get a palindrome (467919919764).

The spelling of 145214507223 in words is "one hundred forty-five billion, two hundred fourteen million, five hundred seven thousand, two hundred twenty-three".