144554 has 4 divisors (see below), whose sum is σ = 216834. Its totient is φ = 72276.

The previous prime is 144541. The next prime is 144563. The reversal of 144554 is 455441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455441 = 7 ⋅65063.

It can be written as a sum of positive squares in only one way, i.e., 93025 + 51529 = 305^2 + 227^2 .

It is a Curzon number.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36137 + ... + 36140.

2¹⁴⁴⁵⁵⁴ is an apocalyptic number.

144554 is a deficient number, since it is larger than the sum of its proper divisors (72280).

144554 is an equidigital number, since it uses as much as digits as its factorization.

144554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72279.

The product of its digits is 1600, while the sum is 23.

The square root of 144554 is about 380.2025775820. The cubic root of 144554 is about 52.4819590317.

Adding to 144554 its reverse (455441), we get a palindrome (599995).

The spelling of 144554 in words is "one hundred forty-four thousand, five hundred fifty-four".