144281602 has 4 divisors (see below), whose sum is σ = 216422406. Its totient is φ = 72140800.

The previous prime is 144281593. The next prime is 144281623. The reversal of 144281602 is 206182441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 206182441 = 73 ⋅2824417.

It can be written as a sum of positive squares in only one way, i.e., 116834481 + 27447121 = 10809^2 + 5239^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36070399 + ... + 36070402.

Almost surely, 2^144281602 is an apocalyptic number.

144281602 is a deficient number, since it is larger than the sum of its proper divisors (72140804).

144281602 is an equidigital number, since it uses as much as digits as its factorization.

144281602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72140803.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 144281602 is about 12011.7276858910. The cubic root of 144281602 is about 524.4897258168.

The spelling of 144281602 in words is "one hundred forty-four million, two hundred eighty-one thousand, six hundred two".