144201553 has 4 divisors (see below), whose sum is σ = 148853248. Its totient is φ = 139549860.

The previous prime is 144201503. The next prime is 144201587. The reversal of 144201553 is 355102441.

It is a happy number.

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: 355102441 = 73 ⋅4864417.

It is a cyclic number.

It is not a de Polignac number, because 144201553 - 2⁹ = 144201041 is a prime.

It is a super-2 number, since 2×144201553² = 41588175775223618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144201503) 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, 2325801 + ... + 2325862.

It is an arithmetic number, because the mean of its divisors is an integer number (37213312).

Almost surely, 2^144201553 is an apocalyptic number.

It is an amenable number.

144201553 is a deficient number, since it is larger than the sum of its proper divisors (4651695).

144201553 is an equidigital number, since it uses as much as digits as its factorization.

144201553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651694.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 144201553 is about 12008.3951050921. The cubic root of 144201553 is about 524.3927103405.

Adding to 144201553 its reverse (355102441), we get a palindrome (499303994).

The spelling of 144201553 in words is "one hundred forty-four million, two hundred one thousand, five hundred fifty-three".