144890061 has 16 divisors (see below), whose sum is σ = 201389760. Its totient is φ = 92543360.

The previous prime is 144890059. The next prime is 144890071. The reversal of 144890061 is 160098441.

144890061 = 986² + 987² + ... + 1116².

It is a cyclic number.

It is not a de Polignac number, because 144890061 - 2¹ = 144890059 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144890021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5041 + ... + 17753.

It is an arithmetic number, because the mean of its divisors is an integer number (12586860).

Almost surely, 2^144890061 is an apocalyptic number.

It is an amenable number.

144890061 is a deficient number, since it is larger than the sum of its proper divisors (56499699).

144890061 is a wasteful number, since it uses less digits than its factorization.

144890061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12876.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 144890061 is about 12037.0287446695. The cubic root of 144890061 is about 525.2259780008.

The spelling of 144890061 in words is "one hundred forty-four million, eight hundred ninety thousand, sixty-one".