145011223 has 8 divisors (see below), whose sum is σ = 171442080. Its totient is φ = 120009120.

The previous prime is 145011221. The next prime is 145011239. The reversal of 145011223 is 322110541.

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

It is not a de Polignac number, because 145011223 - 2¹ = 145011221 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 145011223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145011221) 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, 356968 + ... + 357373.

It is an arithmetic number, because the mean of its divisors is an integer number (21430260).

Almost surely, 2^145011223 is an apocalyptic number.

145011223 is a deficient number, since it is larger than the sum of its proper divisors (26430857).

145011223 is an equidigital number, since it uses as much as digits as its factorization.

145011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714377.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 145011223 is about 12042.0605794856. The cubic root of 145011223 is about 525.3723411563.

Adding to 145011223 its reverse (322110541), we get a palindrome (467121764).

The spelling of 145011223 in words is "one hundred forty-five million, eleven thousand, two hundred twenty-three".