144902212 has 144 divisors (see below), whose sum is σ = 343874160. Its totient is φ = 52835328.

The previous prime is 144902207. The next prime is 144902239. The reversal of 144902212 is 212209441.

It can be written as a sum of positive squares in 8 ways, for example, as 3625216 + 141276996 = 1904^2 + 11886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2733978 + ... + 2734030.

It is an arithmetic number, because the mean of its divisors is an integer number (2388015).

Almost surely, 2^144902212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144902212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171937080).

144902212 is an abundant number, since it is smaller than the sum of its proper divisors (198971948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144902212 is a wasteful number, since it uses less digits than its factorization.

144902212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 144902212 is about 12037.5334682816. The cubic root of 144902212 is about 525.2406600349.

The spelling of 144902212 in words is "one hundred forty-four million, nine hundred two thousand, two hundred twelve".