144402245 has 16 divisors (see below), whose sum is σ = 186946032. Its totient is φ = 106444800.

The previous prime is 144402241. The next prime is 144402277. The reversal of 144402245 is 542204441.

144402245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 34550884 + 109851361 = 5878^2 + 10481^2 .

It is not a de Polignac number, because 144402245 - 2² = 144402241 is a prime.

It is a super-2 number, since 2×144402245² = 41704016722080050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144402241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42095 + ... + 45395.

It is an arithmetic number, because the mean of its divisors is an integer number (11684127).

Almost surely, 2^144402245 is an apocalyptic number.

It is an amenable number.

144402245 is a deficient number, since it is larger than the sum of its proper divisors (42543787).

144402245 is a wasteful number, since it uses less digits than its factorization.

144402245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 144402245 is about 12016.7485202945. The cubic root of 144402245 is about 524.6358714675.

Adding to 144402245 its reverse (542204441), we get a palindrome (686606686).

The spelling of 144402245 in words is "one hundred forty-four million, four hundred two thousand, two hundred forty-five".