144214520 has 32 divisors (see below), whose sum is σ = 326440800. Its totient is φ = 57337728.

The previous prime is 144214517. The next prime is 144214559. The reversal of 144214520 is 25412441.

It is a congruent number.

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, 4115 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (10201275).

Almost surely, 2^144214520 is an apocalyptic number.

144214520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144214520 is an abundant number, since it is smaller than the sum of its proper divisors (182226280).

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

144214520 is a wasteful number, since it uses less digits than its factorization.

144214520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767 (or 21763 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 144214520 is about 12008.9350069022. The cubic root of 144214520 is about 524.4084281474.

Adding to 144214520 its reverse (25412441), we get a palindrome (169626961).

The spelling of 144214520 in words is "one hundred forty-four million, two hundred fourteen thousand, five hundred twenty".