144161553 has 4 divisors (see below), whose sum is σ = 192215408. Its totient is φ = 96107700.

The previous prime is 144161551. The next prime is 144161587. The reversal of 144161553 is 355161441.

It is a happy number.

144161553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355161441 = 3 ⋅118387147.

It is not a de Polignac number, because 144161553 - 2¹ = 144161551 is a prime.

It is a Duffinian number.

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 144161553.

It is not an unprimeable number, because it can be changed into a prime (144161551) 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, 24026923 + ... + 24026928.

It is an arithmetic number, because the mean of its divisors is an integer number (48053852).

Almost surely, 2^144161553 is an apocalyptic number.

It is an amenable number.

144161553 is a deficient number, since it is larger than the sum of its proper divisors (48053855).

144161553 is an equidigital number, since it uses as much as digits as its factorization.

144161553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48053854.

The product of its digits is 7200, while the sum is 30.

The square root of 144161553 is about 12006.7294880829. The cubic root of 144161553 is about 524.3442188420.

The spelling of 144161553 in words is "one hundred forty-four million, one hundred sixty-one thousand, five hundred fifty-three".