144315746 has 4 divisors (see below), whose sum is σ = 216473622. Its totient is φ = 72157872.

The previous prime is 144315739. The next prime is 144315749. The reversal of 144315746 is 647513441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 108972721 + 35343025 = 10439^2 + 5945^2 .

It is not an unprimeable number, because it can be changed into a prime (144315749) 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 as a sum of consecutive naturals, namely, 36078935 + ... + 36078938.

Almost surely, 2^144315746 is an apocalyptic number.

144315746 is a deficient number, since it is larger than the sum of its proper divisors (72157876).

144315746 is an equidigital number, since it uses as much as digits as its factorization.

144315746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72157875.

The product of its digits is 40320, while the sum is 35.

The square root of 144315746 is about 12013.1488794570. The cubic root of 144315746 is about 524.5310957593.

The spelling of 144315746 in words is "one hundred forty-four million, three hundred fifteen thousand, seven hundred forty-six".