72361541 has 16 divisors (see below), whose sum is σ = 84387456. Its totient is φ = 60768576.

The previous prime is 72361511. The next prime is 72361559. The reversal of 72361541 is 14516327.

It is a cyclic number.

It is not a de Polignac number, because 72361541 - 2⁶ = 72361477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72361501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129635 + ... + 130191.

It is an arithmetic number, because the mean of its divisors is an integer number (5274216).

Almost surely, 2^72361541 is an apocalyptic number.

It is an amenable number.

72361541 is a deficient number, since it is larger than the sum of its proper divisors (12025915).

72361541 is a wasteful number, since it uses less digits than its factorization.

72361541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its digits is 5040, while the sum is 29.

The square root of 72361541 is about 8506.5587049053. The cubic root of 72361541 is about 416.7119315802.

Adding to 72361541 its reverse (14516327), we get a palindrome (86877868).

The spelling of 72361541 in words is "seventy-two million, three hundred sixty-one thousand, five hundred forty-one".