144964522 has 4 divisors (see below), whose sum is σ = 217446786. Its totient is φ = 72482260.

The previous prime is 144964507. The next prime is 144964543. The reversal of 144964522 is 225469441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225469441 = 257 ⋅877313.

It can be written as a sum of positive squares in only one way, i.e., 114725521 + 30239001 = 10711^2 + 5499^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36241129 + ... + 36241132.

Almost surely, 2^144964522 is an apocalyptic number.

144964522 is a deficient number, since it is larger than the sum of its proper divisors (72482264).

144964522 is an equidigital number, since it uses as much as digits as its factorization.

144964522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72482263.

The product of its digits is 69120, while the sum is 37.

The square root of 144964522 is about 12040.1213449035. The cubic root of 144964522 is about 525.3159362162.

The spelling of 144964522 in words is "one hundred forty-four million, nine hundred sixty-four thousand, five hundred twenty-two".