144522231 has 8 divisors (see below), whose sum is σ = 220224384. Its totient is φ = 82584120.

The previous prime is 144522229. The next prime is 144522233. The reversal of 144522231 is 132225441.

It is an interprime number because it is at equal distance from previous prime (144522229) and next prime (144522233).

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

It is not a de Polignac number, because 144522231 - 2¹ = 144522229 is a prime.

It is a super-2 number, since 2×144522231² = 41773350506434722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144522233) 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, 3440985 + ... + 3441026.

It is an arithmetic number, because the mean of its divisors is an integer number (27528048).

Almost surely, 2^144522231 is an apocalyptic number.

144522231 is a deficient number, since it is larger than the sum of its proper divisors (75702153).

144522231 is an equidigital number, since it uses as much as digits as its factorization.

144522231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882021.

The product of its digits is 1920, while the sum is 24.

The square root of 144522231 is about 12021.7399323060. The cubic root of 144522231 is about 524.7811405216.

Adding to 144522231 its reverse (132225441), we get a palindrome (276747672).

The spelling of 144522231 in words is "one hundred forty-four million, five hundred twenty-two thousand, two hundred thirty-one".