144213453 has 24 divisors (see below), whose sum is σ = 217771008. Its totient is φ = 95364864.

The previous prime is 144213451. The next prime is 144213469. The reversal of 144213453 is 354312441.

It is a happy number.

It is not a de Polignac number, because 144213453 - 2¹ = 144213451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144213451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28525 + ... + 33197.

It is an arithmetic number, because the mean of its divisors is an integer number (9073792).

Almost surely, 2^144213453 is an apocalyptic number.

It is an amenable number.

144213453 is a deficient number, since it is larger than the sum of its proper divisors (73557555).

144213453 is an equidigital number, since it uses as much as digits as its factorization.

144213453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815 (or 4803 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 144213453 is about 12008.8905815650. The cubic root of 144213453 is about 524.4071348306.

Adding to 144213453 its reverse (354312441), we get a palindrome (498525894).

The spelling of 144213453 in words is "one hundred forty-four million, two hundred thirteen thousand, four hundred fifty-three".