145001227 has 8 divisors (see below), whose sum is σ = 166036736. Its totient is φ = 124045992.

The previous prime is 145001221. The next prime is 145001239. The reversal of 145001227 is 722100541.

It is a happy number.

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

It is not a de Polignac number, because 145001227 - 2¹⁵ = 144968459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145001198 and 145001207.

It is not an unprimeable number, because it can be changed into a prime (145001221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16143 + ... + 23464.

It is an arithmetic number, because the mean of its divisors is an integer number (20754592).

Almost surely, 2^145001227 is an apocalyptic number.

145001227 is a deficient number, since it is larger than the sum of its proper divisors (21035509).

145001227 is an equidigital number, since it uses as much as digits as its factorization.

145001227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40137.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 145001227 is about 12041.6455270864. The cubic root of 145001227 is about 525.3602691192.

Adding to 145001227 its reverse (722100541), we get a palindrome (867101768).

The spelling of 145001227 in words is "one hundred forty-five million, one thousand, two hundred twenty-seven".