144945466 has 4 divisors (see below), whose sum is σ = 217418202. Its totient is φ = 72472732.

The previous prime is 144945457. The next prime is 144945499. The reversal of 144945466 is 664549441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664549441 = 73 ⋅9103417.

It can be written as a sum of positive squares in only one way, i.e., 77951241 + 66994225 = 8829^2 + 8185^2 .

It is a super-2 number, since 2×144945466² = 42018376227914312, 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 as a sum of consecutive naturals, namely, 36236365 + ... + 36236368.

Almost surely, 2^144945466 is an apocalyptic number.

144945466 is a deficient number, since it is larger than the sum of its proper divisors (72472736).

144945466 is an equidigital number, since it uses as much as digits as its factorization.

144945466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72472735.

The product of its digits is 414720, while the sum is 43.

The square root of 144945466 is about 12039.3299647447. The cubic root of 144945466 is about 525.2929171147.

The spelling of 144945466 in words is "one hundred forty-four million, nine hundred forty-five thousand, four hundred sixty-six".