144040215 has 48 divisors (see below), whose sum is σ = 257671008. Its totient is φ = 68640000.

The previous prime is 144040189. The next prime is 144040217. The reversal of 144040215 is 512040441.

It is a happy number.

It is not a de Polignac number, because 144040215 - 2¹³ = 144032023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144040191 and 144040200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144040217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110065 + ... + 111365.

It is an arithmetic number, because the mean of its divisors is an integer number (5368146).

Almost surely, 2^144040215 is an apocalyptic number.

144040215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144040215 is a deficient number, since it is larger than the sum of its proper divisors (113630793).

144040215 is a wasteful number, since it uses less digits than its factorization.

144040215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 144040215 is about 12001.6755080280. The cubic root of 144040215 is about 524.1970674092.

Adding to 144040215 its reverse (512040441), we get a palindrome (656080656).

The spelling of 144040215 in words is "one hundred forty-four million, forty thousand, two hundred fifteen".