144472901 has 4 divisors (see below), whose sum is σ = 148377612. Its totient is φ = 140568192.

The previous prime is 144472891. The next prime is 144472907. The reversal of 144472901 is 109274441.

144472901 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 an emirpimes, since its reverse is a distinct semiprime: 109274441 = 1321 ⋅82721.

It can be written as a sum of positive squares in 2 ways, for example, as 123988225 + 20484676 = 11135^2 + 4526^2 .

It is a cyclic number.

It is not a de Polignac number, because 144472901 - 2¹⁴ = 144456517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144472907) 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, 1952300 + ... + 1952373.

It is an arithmetic number, because the mean of its divisors is an integer number (37094403).

Almost surely, 2^144472901 is an apocalyptic number.

It is an amenable number.

144472901 is a deficient number, since it is larger than the sum of its proper divisors (3904711).

144472901 is an equidigital number, since it uses as much as digits as its factorization.

144472901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904710.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 144472901 is about 12019.6880575163. The cubic root of 144472901 is about 524.7214256034.

The spelling of 144472901 in words is "one hundred forty-four million, four hundred seventy-two thousand, nine hundred one".