144142066 has 4 divisors (see below), whose sum is σ = 216213102. Its totient is φ = 72071032.

The previous prime is 144142039. The next prime is 144142067. The reversal of 144142066 is 660241441.

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., 143304841 + 837225 = 11971^2 + 915^2 .

It is not an unprimeable number, because it can be changed into a prime (144142067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36035515 + ... + 36035518.

Almost surely, 2^144142066 is an apocalyptic number.

144142066 is a deficient number, since it is larger than the sum of its proper divisors (72071036).

144142066 is an equidigital number, since it uses as much as digits as its factorization.

144142066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72071035.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 144142066 is about 12005.9179574075. The cubic root of 144142066 is about 524.3205917467.

The spelling of 144142066 in words is "one hundred forty-four million, one hundred forty-two thousand, sixty-six".