144225994 has 16 divisors (see below), whose sum is σ = 249889536. Its totient is φ = 61700800.

The previous prime is 144225973. The next prime is 144226003. The reversal of 144225994 is 499522441.

It is a super-2 number, since 2×144225994² = 41602274690576072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192442 + ... + 193189.

It is an arithmetic number, because the mean of its divisors is an integer number (15618096).

Almost surely, 2^144225994 is an apocalyptic number.

144225994 is a deficient number, since it is larger than the sum of its proper divisors (105663542).

144225994 is a wasteful number, since it uses less digits than its factorization.

144225994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385661.

The product of its digits is 103680, while the sum is 40.

The square root of 144225994 is about 12009.4127250253. The cubic root of 144225994 is about 524.4223354449.

The spelling of 144225994 in words is "one hundred forty-four million, two hundred twenty-five thousand, nine hundred ninety-four".