144202136 has 64 divisors (see below), whose sum is σ = 301190400. Its totient is φ = 64310400.

The previous prime is 144202129. The next prime is 144202141. The reversal of 144202136 is 631202441.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435491 + ... + 435821.

It is an arithmetic number, because the mean of its divisors is an integer number (4706100).

Almost surely, 2^144202136 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 144202136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150595200).

144202136 is an abundant number, since it is smaller than the sum of its proper divisors (156988264).

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

144202136 is a wasteful number, since it uses less digits than its factorization.

144202136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 144202136 is about 12008.4193797519. The cubic root of 144202136 is about 524.3934170378.

Adding to 144202136 its reverse (631202441), we get a palindrome (775404577).

The spelling of 144202136 in words is "one hundred forty-four million, two hundred two thousand, one hundred thirty-six".