144501890 has 16 divisors (see below), whose sum is σ = 280111608. Its totient is φ = 53354496.

The previous prime is 144501869. The next prime is 144501899. The reversal of 144501890 is 98105441.

144501890 is digitally balanced in base 3, 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 4 ways, for example, as 35988001 + 108513889 = 5999^2 + 10417^2 .

It is not an unprimeable number, because it can be changed into a prime (144501899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555647 + ... + 555906.

Almost surely, 2^144501890 is an apocalyptic number.

144501890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144501890 is a deficient number, since it is larger than the sum of its proper divisors (135609718).

144501890 is a wasteful number, since it uses less digits than its factorization.

144501890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111573.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 144501890 is about 12020.8938935505. The cubic root of 144501890 is about 524.7565189947.

The spelling of 144501890 in words is "one hundred forty-four million, five hundred one thousand, eight hundred ninety".