144901285 has 32 divisors (see below), whose sum is σ = 191987712. Its totient is φ = 104509440.

The previous prime is 144901283. The next prime is 144901297. The reversal of 144901285 is 582109441.

It is a happy number.

It is not a de Polignac number, because 144901285 - 2¹ = 144901283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144901285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144901283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334429 + ... + 334861.

It is an arithmetic number, because the mean of its divisors is an integer number (5999616).

Almost surely, 2^144901285 is an apocalyptic number.

It is an amenable number.

144901285 is a deficient number, since it is larger than the sum of its proper divisors (47086427).

144901285 is a wasteful number, since it uses less digits than its factorization.

144901285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 144901285 is about 12037.4949636542. The cubic root of 144901285 is about 525.2395399712.

The spelling of 144901285 in words is "one hundred forty-four million, nine hundred one thousand, two hundred eighty-five".