144506522 has 4 divisors (see below), whose sum is σ = 216759786. Its totient is φ = 72253260.

The previous prime is 144506519. The next prime is 144506543. The reversal of 144506522 is 225605441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225605441 = 3529 ⋅63929.

It can be written as a sum of positive squares in only one way, i.e., 129982801 + 14523721 = 11401^2 + 3811^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36126629 + ... + 36126632.

Almost surely, 2^144506522 is an apocalyptic number.

144506522 is a deficient number, since it is larger than the sum of its proper divisors (72253264).

144506522 is an equidigital number, since it uses as much as digits as its factorization.

144506522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72253263.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 144506522 is about 12021.0865565472. The cubic root of 144506522 is about 524.7621259484.

The spelling of 144506522 in words is "one hundred forty-four million, five hundred six thousand, five hundred twenty-two".