144999228 has 24 divisors (see below), whose sum is σ = 369089280. Its totient is φ = 43939120.

The previous prime is 144999223. The next prime is 144999233. The reversal of 144999228 is 822999441.

It is an interprime number because it is at equal distance from previous prime (144999223) and next prime (144999233).

It is a super-2 number, since 2×144999228² = 42049552241191968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144999223) 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, 549108 + ... + 549371.

It is an arithmetic number, because the mean of its divisors is an integer number (15378720).

Almost surely, 2^144999228 is an apocalyptic number.

It is an amenable number.

144999228 is an abundant number, since it is smaller than the sum of its proper divisors (224090052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144999228 is a wasteful number, since it uses less digits than its factorization.

144999228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098497 (or 1098495 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 144999228 is about 12041.5625231944. The cubic root of 144999228 is about 525.3578548868.

The spelling of 144999228 in words is "one hundred forty-four million, nine hundred ninety-nine thousand, two hundred twenty-eight".