144215332 has 24 divisors (see below), whose sum is σ = 259826616. Its totient is φ = 70007808.

The previous prime is 144215329. The next prime is 144215387. The reversal of 144215332 is 233512441.

It can be written as a sum of positive squares in 4 ways, for example, as 55591936 + 88623396 = 7456^2 + 9414^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144215297 and 144215306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17058 + ... + 24070.

It is an arithmetic number, because the mean of its divisors is an integer number (10826109).

Almost surely, 2^144215332 is an apocalyptic number.

It is an amenable number.

144215332 is a deficient number, since it is larger than the sum of its proper divisors (115611284).

144215332 is a wasteful number, since it uses less digits than its factorization.

144215332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167 (or 7165 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 144215332 is about 12008.9688150149. The cubic root of 144215332 is about 524.4094123729.

Adding to 144215332 its reverse (233512441), we get a palindrome (377727773).

The spelling of 144215332 in words is "one hundred forty-four million, two hundred fifteen thousand, three hundred thirty-two".