144059906 has 4 divisors (see below), whose sum is σ = 216089862. Its totient is φ = 72029952.

The previous prime is 144059893. The next prime is 144059947. The reversal of 144059906 is 609950441.

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., 72505225 + 71554681 = 8515^2 + 8459^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144059906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36014975 + ... + 36014978.

Almost surely, 2^144059906 is an apocalyptic number.

144059906 is a deficient number, since it is larger than the sum of its proper divisors (72029956).

144059906 is an equidigital number, since it uses as much as digits as its factorization.

144059906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72029955.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 144059906 is about 12002.4958237860. The cubic root of 144059906 is about 524.2209530862.

The spelling of 144059906 in words is "one hundred forty-four million, fifty-nine thousand, nine hundred six".