144535223412 has 72 divisors (see below), whose sum is σ = 376572897792. Its totient is φ = 46721102400.

The previous prime is 144535223401. The next prime is 144535223419. The reversal of 144535223412 is 214322535441.

It is a happy number.

144535223412 is a `hidden beast` number, since 1 + 44 + 53 + 522 + 3 + 41 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144535223419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307588 + ... + 619419.

It is an arithmetic number, because the mean of its divisors is an integer number (5230179136).

Almost surely, 2^144535223412 is an apocalyptic number.

144535223412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144535223412 is an abundant number, since it is smaller than the sum of its proper divisors (232037674380).

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

144535223412 is a wasteful number, since it uses less digits than its factorization.

144535223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927149 (or 927144 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 144535223412 its reverse (214322535441), we get a palindrome (358857758853).

The spelling of 144535223412 in words is "one hundred forty-four billion, five hundred thirty-five million, two hundred twenty-three thousand, four hundred twelve".