144543722 has 4 divisors (see below), whose sum is σ = 216815586. Its totient is φ = 72271860.

The previous prime is 144543703. The next prime is 144543727. The reversal of 144543722 is 227345441.

144543722 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 109390681 + 35153041 = 10459^2 + 5929^2 .

It is a super-2 number, since 2×144543722² = 41785775139226568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144543727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36135929 + ... + 36135932.

Almost surely, 2^144543722 is an apocalyptic number.

144543722 is a deficient number, since it is larger than the sum of its proper divisors (72271864).

144543722 is an equidigital number, since it uses as much as digits as its factorization.

144543722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72271863.

The product of its digits is 26880, while the sum is 32.

The square root of 144543722 is about 12022.6337380792. The cubic root of 144543722 is about 524.8071515430.

The spelling of 144543722 in words is "one hundred forty-four million, five hundred forty-three thousand, seven hundred twenty-two".