72144411 has 8 divisors (see below), whose sum is σ = 98429760. Its totient is φ = 46977672.

The previous prime is 72144403. The next prime is 72144419. The reversal of 72144411 is 11444127.

It is an interprime number because it is at equal distance from previous prime (72144403) and next prime (72144419).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72144411 - 2³ = 72144403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72144419) 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 7 ways as a sum of consecutive naturals, for example, 279501 + ... + 279758.

It is an arithmetic number, because the mean of its divisors is an integer number (12303720).

Almost surely, 2^72144411 is an apocalyptic number.

72144411 is a deficient number, since it is larger than the sum of its proper divisors (26285349).

72144411 is a wasteful number, since it uses less digits than its factorization.

72144411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559305.

The product of its digits is 896, while the sum is 24.

The square root of 72144411 is about 8493.7866114001. The cubic root of 72144411 is about 416.2947149612.

Adding to 72144411 its reverse (11444127), we get a palindrome (83588538).

The spelling of 72144411 in words is "seventy-two million, one hundred forty-four thousand, four hundred eleven".