72531141 has 8 divisors (see below), whose sum is σ = 96930240. Its totient is φ = 48243072.

The previous prime is 72531139. The next prime is 72531149. The reversal of 72531141 is 14113527.

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

It is not a de Polignac number, because 72531141 - 2¹ = 72531139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72531149) 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, 26220 + ... + 28853.

It is an arithmetic number, because the mean of its divisors is an integer number (12116280).

Almost surely, 2^72531141 is an apocalyptic number.

It is an amenable number.

72531141 is a deficient number, since it is larger than the sum of its proper divisors (24399099).

72531141 is a wasteful number, since it uses less digits than its factorization.

72531141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55515.

The product of its digits is 840, while the sum is 24.

The square root of 72531141 is about 8516.5216491241. The cubic root of 72531141 is about 417.0372388231.

Adding to 72531141 its reverse (14113527), we get a palindrome (86644668).

The spelling of 72531141 in words is "seventy-two million, five hundred thirty-one thousand, one hundred forty-one".