144731146 has 16 divisors (see below), whose sum is σ = 249039360. Its totient is φ = 61795440.

The previous prime is 144731143. The next prime is 144731173. The reversal of 144731146 is 641137441.

It is not an unprimeable number, because it can be changed into a prime (144731143) 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, 15450 + ... + 22981.

It is an arithmetic number, because the mean of its divisors is an integer number (15564960).

Almost surely, 2^144731146 is an apocalyptic number.

144731146 is a deficient number, since it is larger than the sum of its proper divisors (104308214).

144731146 is a wasteful number, since it uses less digits than its factorization.

144731146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38709.

The product of its digits is 8064, while the sum is 31.

The square root of 144731146 is about 12030.4258444994. The cubic root of 144731146 is about 525.0338856435.

Adding to 144731146 its reverse (641137441), we get a palindrome (785868587).

The spelling of 144731146 in words is "one hundred forty-four million, seven hundred thirty-one thousand, one hundred forty-six".