144351553 has 4 divisors (see below), whose sum is σ = 145084500. Its totient is φ = 143618608.

The previous prime is 144351521. The next prime is 144351601. The reversal of 144351553 is 355153441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355153441 = 15061 ⋅23581.

It can be written as a sum of positive squares in 2 ways, for example, as 72982849 + 71368704 = 8543^2 + 8448^2 .

It is a cyclic number.

It is not a de Polignac number, because 144351553 - 2⁵ = 144351521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144351353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366178 + ... + 366571.

It is an arithmetic number, because the mean of its divisors is an integer number (36271125).

Almost surely, 2^144351553 is an apocalyptic number.

It is an amenable number.

144351553 is a deficient number, since it is larger than the sum of its proper divisors (732947).

144351553 is an equidigital number, since it uses as much as digits as its factorization.

144351553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732946.

The product of its digits is 18000, while the sum is 31.

The square root of 144351553 is about 12014.6391123496. The cubic root of 144351553 is about 524.5744736358.

The spelling of 144351553 in words is "one hundred forty-four million, three hundred fifty-one thousand, five hundred fifty-three".