145433223 has 24 divisors (see below), whose sum is σ = 228363408. Its totient is φ = 88653312.

The previous prime is 145433221. The next prime is 145433251. The reversal of 145433223 is 322334541.

145433223 is a `hidden beast` number, since 1 + 4 + 5 + 433 + 223 = 666.

It is not a de Polignac number, because 145433223 - 2¹ = 145433221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145433221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6711 + ... + 18327.

It is an arithmetic number, because the mean of its divisors is an integer number (9515142).

Almost surely, 2^145433223 is an apocalyptic number.

145433223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145433223 is a deficient number, since it is larger than the sum of its proper divisors (82930185).

145433223 is a wasteful number, since it uses less digits than its factorization.

145433223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11743 (or 11740 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 145433223 is about 12059.5697684453. The cubic root of 145433223 is about 525.8814797036.

Adding to 145433223 its reverse (322334541), we get a palindrome (467767764).

It can be divided in two parts, 14543 and 3223, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 145433223 in words is "one hundred forty-five million, four hundred thirty-three thousand, two hundred twenty-three".